Answer:
B on Edg2021
Explanation:
Took it
The image portrays Charles Darwin's theory of Natural Selection, specifically the principle of competition within a population due to a limit in resources. Characteristics that provide an advantage in this competition are more likely to be passed on to the next generation. The oryx's might be competing for resources like food, water, or mates, leading to an evolution of the population over time through survival of the fittest.
Explanation:The image of the two male oryx's in your question seems to depict one of Charles Darwin's main points, this being natural selection, which is a key mechanism of evolution. The principle of competition within a population is central to Darwin's theory of natural selection. According to this theory, more offspring are produced than can survive due to limited resources, leading to intra-species competition. Characteristics that provide an advantage in this competition are more likely to be passed on to the next generation. Thus, those who inherit the favorable traits have a higher chance of survival and reproduction.
From the example of the two oryx's, we may guess that they might be competing for resources such as food, water, territory, or mates. This competition could lead to survival of the fittest where the oryx with the best suited traits for survival in its specific environment would have more offspring that will share those traits, leading to an evolution in the population over generations.
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Which of the following is released by a plant following photosynthesis?
A.
oxygen
B.
nitrogen
C.
carbon dioxide
D.
water
oxygen is released in photosynthesis
Answer:
A. Oxygen
Explanation:
plant release oxygen as a by-product of photosynthesis.
Suppose that Louisa is cut by broken glass during a lab accident. Which is the proper place to dispose of the paper towels that are used to clean up the blood?
Answer:
hazardous waste container
Explanation:
In a lab, hazardous waste container contains all the waste which can be dangerous or infectious. Hence, it should be properly handled and disposed of. Due to the cut in the lab, the blood of Lousia might contain infectious microorganisms. Hence, after cleaning the blood with paper towels, the paper towels should be discarded in the hazardous waste container as the paper towel might contain hazardous microorganisms.
a group of organisms that are all of the same species living in the same area and interacting with each other is called
A. a population
B. a community
C. a biome
D. an ecosystem
Answer:
Population
Explanation:
A group of organisms of the same species living in the same area at the same time, and which are capable of interbreeding.
A group of the same species in the same area is called a population. Communities are multiple populations in an area, and ecosystems include these communities plus abiotic factors. The biosphere is the total collection of all Earth's ecosystems.
Explanation:A group of organisms that are all of the same species, living in the same area and interacting with each other, is called a population. When discussing different populations that inhabit a common area and their interactions, we refer to it as a community. In contrast, an ecosystem includes not only the biological community but also the abiotic, or non-living, components of the environment, such as soil nutrients and water. At the highest order, the biosphere comprises all ecosystems and represents life on Earth, extending through land, water, and portions of the atmosphere.
For example, in a forest, all the trees, flowers, insects, and other populations form the forest's community. The forest as a whole is an ecosystem, which includes both biotic (living) and abiotic (non-living) components. At the highest level of organization, the biosphere encompasses all ecosystems on Earth. It includes land, water, and even portions of the atmosphere.
2 Points
Which of the following shows methods of harvesting corn in order from the
lowest rate of resource consumption to the highest?
A. Picked and sorted by hand hand-picked and sorted by a simple
machine picked and sorted by complex machinery
O
B. Picked and sorted by hand picked and sorted by complex
machinery hand-picked and sorted by a simple machine
O
C. Hand-picked and sorted by a simple machine → picked and sorted
by hand picked and sorted by complex machinery
O
D. Picked and sorted by complex machinery — hand-picked and
sorted by a simple machine → picked and sorted by hand
Answer:
The correct option is A) Picked and sorted by hand, hand-picked and sorted by a simple machine picked and sorted by complex machinery
Explanation:
Option A is correct because the first method is to pick ans sort by using the hands only which will be the lowest resource consumption as only hands are being used. The second method illustrates using hands for picking ans simple machinery for sorting. As simple machinery is being used hence this method uses more resources than the first one. The third method described using complex machinery for both picking and sorting, which will use the highest resources.
Answer: D. I just took it
Explanation:
Nutritionists and doctors do not recommend energy restrictions below. Calories for women and. Calories for men.
Nutritionists and doctors recommend not falling below 1,200 calories per day for women and 1,500 calories for men to maintain proper health and metabolism. Athletes may require more, up to 3,000 to 5,000 calories, depending on their level of activity. Balanced diets and avoiding very low-calorie diets are essential for metabolic health.
Explanation:Nutritionists and doctors typically recommend that energy intake should not fall below certain thresholds to ensure adequate nutrition and maintain metabolic health. For women, the lower limit is often set around 1,200 calories per day, while for men it is typically around 1,500 calories per day. These numbers can vary based on the individual's body size, age, activity level, and other health-related factors.
The quality and quantity of the food consumed markedly affect one's metabolism. Energy-dense foods with poor nutritional quality, such as sugary drinks, can lead to weight gain and associated health issues. Nutritional needs increase with physical activity, and athletes, in particular, may require significantly more calories. For instance, competitive athletes often require between 3,000 to 5,000 calories daily, whereas a sedentary person may need only about 2,000 calories. Energy requirements further vary by gender; men generally have higher caloric needs than women due to greater muscle mass.
Regardless of caloric intake, it's crucial to consume a balanced diet rich in vegetables, fruits, whole grains, and lean proteins. It is also important to avoid extremely low-calorie diets, as they can substantially lower basal metabolic rate (BMR) and potentially harm health. Proper caloric consumption aids in maintaining body composition, supporting bodily functions, and ensuring adequate nutrient intake.
Final answer:
Nutritionists typically recommend that women should not consume fewer than 1200 calories per day and men not fewer than 1500 calories per day to ensure nutritional needs are met without adverse health effects. Quality and quantity of food intake are crucial in managing energy needs, which vary based on lifestyle, gender, and activity level.
Explanation:
Nutritionists and doctors typically advise against severe energy restrictions that fall below certain caloric thresholds. For normal daily activities, an average person requires between 1500 to 2000 calories. However, factors such as gender, age, weight, and physical activity level can influence individual energy needs. For instance, men generally need more calories than women due to higher muscle mass. It's important to maintain a balance and consume a diet that provides the quality and quantity of calories necessary to prevent both over-consumption and under-consumption. Over-consumption can lead to health issues such as cardiovascular disease, cancer, and diabetes, while under-consumption can dramatically reduce one's basal metabolic rate (BMR) and lead to other health problems.
Regarding the minimum calorie intake, health professionals generally do not recommend that women consume less than 1200 calories and men less than 1500 calories per day without medical supervision. This is to ensure that individuals still meet their nutritional needs without risking adverse effects on their metabolism and overall health.
In conclusion, a diet that includes a variety of vegetables, fruits, whole grains, and legumes, while limiting sugary drinks and energy-dense foods, is recommended. Additionally, energy needs are highly individualized and should be tailored to one's lifestyle, with discretionary calories adjusted based on activity level and age.
When created an mRNA, a cell matched a T with a G. This led to a different amino
acid being added during translation. When this happens, what is it called?
accurate base pairing
mutation
transformation
differentiation
Which type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal because
it has always been observed to be true?
theory
probability
law
hypothesis
Answer:
law
Explanation:
a scientific law is based on observations of similar events that is ALWAYS true while a scientific theory is based on repeated observations and scientific investigations that ia ALMOST ALWAYS true
Which of the following would be least likely to be part of an ionic bond?
- calcium
- Carbon
- lithium
- Bromine
Answer:
Carbon is least likely to be part of an ionic bond.
Explanation:
Ionic bond is formed by the process of transformation of electron between two atoms.In ionic bonds the charges of cations and anions are balanced.For the atom of carbon to form an ionic bond it must transfer 4 electron or gain 4 electron from another atom, this is not likely to occur in the chemical reaction.Hence carbon atom shares 4 electron so that it can have the configuration of noble gas.Final answer:
Carbon is the element least likely to be part of an ionic bond, as ionic bonds commonly occur between metals and nonmetals, and carbon is a nonmetal.
Explanation:
The element most likely to be least likely to be part of an ionic bond among calcium, carbon, lithium, and bromine is carbon. This is because carbon (group 14) is a nonmetal and does not typically form ionic bonds, which generally occur between a metal and a nonmetal. Calcium (group 2), lithium (group 1), and bromine (group 17) are more likely to form ionic bonds, as calcium and lithium are metals and can readily donate electrons to nonmetals like bromine, which accepts electrons to form negative ions.
Which types of organisms are always made up of only one cell each?
Answer: Unicellular organisms.
Explanation:
Answer:
Unicellular organisms: Bacteria, protists, and yeast
Explanation:
Unicellular organisms are made up of only one cell. All of the functions needed by the organism are carried out by that one cell. Bacteria, protists, and yeast are some examples of unicellular organisms.
what is the end, and the end of the beginning
Answer:
Winston Churchill Quotes
Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.
Explanation:
The end in literature and storytelling marks the conclusion of the narrative or the resolution of the conflict. The end of the beginning signifies the conclusion of the opening phase and the transition into the main events or plot development.
Explanation:The question seems to be asking about the concept of 'the end' and 'the end of the beginning.' In literature and storytelling, the end is the culmination of the narrative or the resolution of the conflict. It is the moment that concludes the journey or experience. The end of the beginning refers to the conclusion of the opening phase or introduction, marking the transition into the main events or development of the plot.
Normal cells may undergo changes during cell processes that can lead to
cancer. However, most of them do not form cancers.
Which of the following explanations accounts for the relatively low rates
of cancer?
A. Cancerous cells die when they are exposed to radiation.
B. Cancerous cells are crowded out by normal cell growth.
C. Cancer cells grow only very slowly at first.
D. DNA repair systems fix the mutation before it causes cancer.
Answer:
A
Explanation:
A mother carries one allele of a recessive gene for a disease on an autosome, and the father carries no recessive alleles of the gene for that disease. What is the likelihood of their child having the disease?
A. 0%
B. 50%
C. 75%
D. 100%
What is the likelihood of their child having the disease is:
A. 0%
Explanation:
The mother is heterozygous, thus she has an allele which is recessive and the other allele which is dominant.The father has no recessive allele for the gene.During meiosis in mother , two types of gametes will be produced. One type of gamete will have the recessive allele and the other type of gametes will have dominant allele.During meiosis in father, only one type of gametes will be formed which will have the dominant allele only.In a situation a female gamete with recessive allele is fertilized by a male gamete with dominant allele. The resulting zygote will be heterozygous.The effect of the recessive allele will be masked by the dominant allele and the child will not have the disease.In a situation a female gamete with the dominant allele is fertilized by a male gamete with dominant allele then the resulting zygote will be homozygous for dominant allele and obvioiusly the individual will not have the disease.Thus, in this case we can conclude that there is 0% chance of child having the disease.There are many factors that influence the number of different kinds of plants in a biome. Why is elevation, or height, a factor that influences what kinds of plants can live in any certain biome on Earth?
Answer:
Elevation, or height, is a factor that influences what kinds of plants can live in any certain biome on Earth because elevation determines the temperature of that place.
Explanation:
The most important factor that is responsible to make the plants grow in that particular area is the climate, and climate is determined by the height and elevation.As the elevation increases (i.e. height from sea level) the temperature of that place decreases. There are other factors like, pollution, humidity level etc. that determines the growth of biome on earth besides height and elevation.Answer:
Answer:
Elevation, or height, is a factor that influences what kinds of plants can live in any certain biome on Earth because elevation determines the temperature of that place.
Explanation:
The most important factor that is responsible to make the plants grow in that particular area is the climate, and climate is determined by the height and elevation.
As the elevation increases (i.e. height from sea level) the temperature of that place decreases.
There are other factors like, pollution, humidity level etc. that determines the growth of biome on earth besides height and elevation.
Explanation:
What causes pressure?
A. Converting phases
B. Conduction of heat
C. Changes in bonding
D. Collisions of molecules
Answer:
D
Explanation:
collisions between molecules and atoms push on the container creating pressure
Pressure is caused by collisions of molecules within a gas, as their kinetic activity and interactions with the container walls generate a force exerted over an area.
The cause of pressure, especially when discussing gases, is due to collisions of molecules. When gas molecules move, they bounce off each other and the walls of their container. This action results in a force distributed over the area of the container walls, which is defined as pressure. This concept can be represented mathematically as pressure (P) being proportional to the number of collisions, the mass of the molecules (m), and the square of their velocity (v), simplified as P = Nmv2, where N is the number of molecules.
Moreover, changes in temperature and pressure can affect phase changes, such as melting, freezing, evaporation, and condensation. During such phase changes, energy transfer occurs without a change in the system's temperature, leading to the transition from one phase to another. However, when discussing the direct cause of pressure in a gas, it is the kinetic activity of particles, their collisions, and the resulting force on the area of the walls that is directly responsible.
The Law of Independent Assortment describes why there is so much
diversity among offspring of a species. A female rabbit that is
heterozygous for long ears and long fur mates with a male rabbit that is
also heterozygous for long ears and long fur. What is the phenotypic ratio
of the offspring of this genetic cross?
LIFF X LIFE
8:8
8:6:2
1:1:1:1
09:3:3:1
9:3:3:1 is the ratio.
Option D.
Explanation:The cross described here is actually similar to Mendel’s Dihybrid Cross where two characters of the organisms are actually taken into account and then the phenotypic ratio of the F2 offsprings are seen.
The genes for the long ears and long fur are both heterozygous in both parents. So both of the parents have a dominant allele and a recessive allele.
Lets suppose the dominant allele for the gene determining ear is E and recessive is e. And the dominant allele for the gene determining fur is F and recessive is f.
So the genotype of both the parents is EeFf.
So the gametes produced by both the parents are EF, Ef, eF and ef respectively.
Thus, if we put these in punnett square and see the offsprings, we will see that phenotypic ratio of Ling eared long furred to long eared short furred to short eared long furred to short eared short furred is 9:3:3:1.
Answer:
9 : 3 : 3 : 1
Explanation:
JUIN HYUNCU
VORSES
Attempt 1 of 5
Which of the following is the correct meaning of transpiration?
the absorption of water through the stomata
the mixing of carbon dioxide and water through in the stomata
the evaporation of water through the stomata
the loss of carbon dioxide through the stomata
Answer:
Option C.
The correct meaning of transpiration is the evaporation of water through the stomata.
Explanation:
In simple words transpiration is defined as the process of loosing of water from plant through somata as water vapor into the environment.Transpiration occurs from the small pores of roots, stem, flowers and leaf through which water vapor from plant is exhaled, evaporated and mixed in the atmosphere.97–99.5% of water in plant is lost through the continuous process of guttation and transpiration.Hemophilia is an X-linked recessive trait. In a family, the father is unaffected and the mother carries only one recessive allele. (1 point) A. All of the male offsrping would be affected. B. Half of the male offspring would be affected. C. All of the female offspring would be affected. D. Half of the female offspring would be affected.
Answer: The answer is A
Explanation:
Final answer:
The correct answer is B. Half of the male offspring would be affected since they have a 50% chance of inheriting the hemophilia allele from a heterozygous mother. Daughters would only be carriers, not affected, because they inherit a normal X chromosome from their father.
Explanation:
Hemophilia is an X-linked recessive trait, meaning it is carried on the X chromosome. A mother who is heterozygous for hemophilia (carrying one recessive allele) has a 50% chance of passing this allele to her sons, since they receive their only X chromosome from her. The father, who is unaffected, cannot pass the hemophilia allele to his sons as they receive his Y chromosome.
Therefore, the correct answer is B. Half of the male offspring would be affected. Daughters, however, would not be affected because they receive one normal X chromosome from their father and would need to inherit two defective X chromosomes to express the disease, which is extremely rare. As the mother carries only one recessive allele, she could pass the defective gene to her daughters, but these daughters would be carriers, not affected.
attached earlobes are a recessive trait in humans. in the tree below, people with attached earlobes are shaded in. which best describes the person labeled X in the tree?
A) a male with one recessive allele
B) a female with no recessive alleles
C) a female with one recessive allele
D) a male with no recessive alleles
Answer:
The correct option is A) a male with one recessive allele
Explanation:
As we can depict, the offsprings are formed by a cross between a homozygous recessive parent and a heterozygous parent.
The outcomes of such a cross will be:
r r
R Rr Rr
r rr rr
The results from the cross show that the offsprings from such a cross will either have both recessive alleles and will have attached earlobes or they will be heterozygous dominant having unattached ear lobes.
As we can see from the pedigree, the person labelled X is not shaded hence it cannot carry the alleles rr. So, the person is heterozygous carrying one dominant and one recessive allele.
Answer:
He's right its A
Explanation:
What is the function of a motor neuron
A motor neuron is a neuron that specifically controls the movement and usage of muscles and glands.
A motor neuron carries nerve impulses from the central nervous system to muscles and glands, resulting in their activation. They connect to muscle fibers at neuromuscular junctions and can be precisely controlled based on the motor unit's needs. This nerve impulse transmission results in muscle contraction.
Explanation:The function of a motor neuron is to carry nerve impulses from the central nervous system to muscles and glands. These neurons change nerve signals into activation of these structures. Motor neurons project to the spinal cord to synapse with more motor neurons in the ventral horn of the spinal cord, which then connect to skeletal muscles and cause contractions.
These neurons connect to the muscles at neuromuscular junctions, where they connect to multiple muscle fibers within a target muscle. The number of fibers that a motor neuron connects to varies based on the required precision of the muscle and the force necessary for that motor unit. For instance, the quadriceps have many fibers controlled by single motor neurons for robust contractions that don't need to be precise, but extraocular muscles are controlled by each motor neuron very precisely since moving the eyes requires less force but needs high precision.
Motor neurons transmit nerve impulses to the muscles causing them to contract. At the neuromuscular junction, the motor neuron axons connect to muscle fibers. Here, the motor neurons secrete a neurotransmitter called acetylcholine that binds to receptors on the muscle fiber, triggering muscle contraction.
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10. Do you demand a perfect streak or are you able to accept that life is a mix of losses and wins?
Answer: I am able to accept that life is a mix.
Explanation:
not everything in life comes easy and you can learn from your losses to help get more wins.
what is mRNA?
WILL GIVE BRAINLIEST!!!
A. a DNA strand that cannot be transcribed
B. an RNA copy of a DNA gene
C. a DNA sequence at the start of a gene
D. an RNA segment that does not code for proteins
mRNA is:
B. an RNA copy of a DNA gene
Hope this helps!
Answer:
B. An RNA copy of a DNA gene
Why does the United States purchase oil from other countries and the problem this sometimes causes
Answer:
The oil produced in United States is light and low sulfur content and they do not have proper processing facilities, hence purchase it from other countries.
Explanation:
About 9.93 million barrels per day U.S purchase oil from 86 countries. Because the crude oil present is not homogeneous in nature. It is very light in nature with low sulfur content or may be high,this particular factor depends upon the method of the refining. Most of the oil are being exported by the Saudi Arabia and then comes Russia followed by Iraq. Despite the collapse in price, U.S. dependence on foreign oil should continue to decrease.
The movement of water molecules through the environment is known as the
Answer:
osmosis
Explanation:
Movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.
3. Determine which would have fewer protein and DNA base
sequence differences with humans-chimpanzees or cows.
Answer:
Chimpanzees
Explanation:
Chimpanzees are much more closely related to humans in an evolutionary sense that cows are. Chimpanzees and humans are both primates, characterized by features like advanced cognition, grasping hands and feet, and front facing eyes. In contrast, cows belong to a different of bovine animals.
Because we are evolutionary more related to chimpanzees, that means our DNA has undergone less change over evolutionary time. That means that the sequence will be more similar to chimps
Which animals typically have a reproductive group and a nonreproductive group within their social structure?
Answer: the answer to this question is bees and ants hope this helps
Explanation:
Answer:
bees
Explanation:
edge
An animal that regulates its body temperature by producing heat within its own tissues is a _______
Answer:
An endotherm is an animal that regulates its own body temperature, typically by keeping it at a constant level. To regulate body temperature, an organism may need to prevent heat gains in arid environments.
Explanation:
Answer:
a dog
Explanation:
hope it help a little bit
7. Science is to pseudopsychology as
is to
Answer:
psychology; astrology
Explanation:
Science is to pseudopsychology as psychology is to astrology.
Science can be described as a vast field in which various aspects of nature are studied through experiments and observations. Whereas, pseudopsychology can be described as any psychological practice that is false or not supported by valid experiments.
Psychology is the understanding of the human mind by through valid experiments and observations. Astrology is a pseudoscience which focuses on human events related to positions of celestial objects.
How are oxbows and loess similar?
Oxbows and loess both show similarity as they both show the constructive power of erosion. An oxbow lake starts as a curve in a river. Oxbows are formed where the river often empties into another water body. A loess is a sediment which is formed by the accumulation of the wind blown silt.
Answer:
they both the constructive power of erosion
there both formed by river erosion
there both caused by gravity
Explanation:
Which VERY important process MUST occur prior to cell division and why?
Question 4 options:
Protein Synthesis must occur prior to cell division in order for cells to grow properly.
DNA Replication must occur prior to cell division because T bases should not be created in new cells.
DNA Replication must occur prior to cell division because DNA carries the coding or instructions for all cell function.
Transcription must occur prior to cell division because RNA needs to be able to leave the nucleus for cells to divide.
Answer:
DNA Replication must occur prior to cell division because DNA carries the coding or instructions for all cell function.
DNA Replication must occur prior to cell division because DNA carries the coding or instructions for all cell functions.
The cell cycle can be sequentially divided into an interphase and a mitotic 'M' phase.The interphase can in turn be divided into a Growth G1 phase, synthesis (S) phase and Growth G2 phase.DNA replication occurs during the S phase, before the mitotic M cell division.In conclusion, DNA Replication must occur prior to cell division because DNA carries the coding or instructions for all cell functions.
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Hi!! Can anyone please help me with the problem linked as a photo? Thanks!!
Two cells will finally be produced .If the parent cell has 2n chromosomes, each daughter cell will have n chromosomes.
1. How many cells will finally be produced?
Two cells will finally be produced.
2. How many chromosomes will be in each cell?
Each cell will have half the number of chromosomes as the parent cell. So, if the parent cell has 2n chromosomes, each daughter cell will have n chromosomes.
3. Sketch one of the final cells, showing its chromosomes.
Here is a sketch of one of the final cells, showing its chromosomes:
+---+---+
| | |
| | |
| | |
+---+---+ +---+---+
| | | | | |
| | | | | |
| | | | | |
+---+---+ +---+---+
This cell has 2n = 4 chromosomes. The chromosomes are arranged in homologous pairs.
The sister chromatids of each chromosome are attached at the centromere.
Additional information about the image:
The image you provided shows the sequence of events in a cell undergoing normal meiotic cell division.
The four diagrams represent the following stages:
Diagram 1: Prophase I. The homologous chromosomes pair up and form tetrads.
Crossing-over, the exchange of genetic material between homologous chromosomes, can occur during this stage.
Diagram 2: Metaphase I. The tetrads align on the metaphase plate.
Diagram 3: Anaphase I. The homologous chromosomes separate and move to opposite poles of the cell.
Diagram 4: Telophase I and cytokinesis. Two daughter cells are formed, each with a haploid set of chromosomes.
After meiosis I, the two daughter cells enter meiosis II. Meiosis II is similar to mitosis, but the sister chromatids of each chromosome separate.
This results in four haploid daughter cells.
Meiosis is essential for sexual reproduction.
It ensures that the offspring have the correct number of chromosomes and that there is genetic diversity in the population.