The greatest biodiversity is found in ecosystems with a wide variety of living things. This means having a diverse range of species and genetic differences among them.
Explanation:The ecosystem with the greatest biodiversity is the one that has the greatest variety of living things (Option A). Biodiversity refers to the variety of life found in a particular ecosystem or across the entire planet. It includes the number of different species, the genetic diversity within and between these species, and the range of habitats and ecosystems. The more variety of different species and genetic differences, the higher the biodiversity. This is crucial for the health of the ecosystem, as each species fills a different ecological niche and contributes to the system's overall resilience.
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Which of the following is a false statement?
A
Some deserts we know today once had rivers and lakes.
B
Mass extinctions may have been caused by meteors.
C
Very few species have ever gone extinct.
D
Sometimes, species evolve to be more complex.
Answer:
C. Very few species have ever gone extinct.
Explanation:
784 extinctions have been recorded since the year 1500 alone
The false statement is Very few species have ever gone extinct, as scientific evidence suggests up to 99.9% of species that have ever lived are now extinct. Option C is correct.
The false statement among the options provided is Very few species have ever gone extinct. This statement contradicts the widely accepted scientific understanding that up to 99.9% of all species that have ever lived on Earth are now extinct.
There have been five mass extinctions in Earth's history that have caused the disappearance of a large percentage of species, and current rates of extinction are higher than the background extinction rates largely due to human activities. Moreover, the process of speciation continues to create new species, which sometimes evolve to be more complex.
Hence, C. is the correct option.
In snapdragon flowers petal coloration is incompletely dominant with petals either being red,
white, or pink. If two plants are bred creating several hundred offspring all of which are pink
what would be the most likely phenotypes of the parent plants?
Answer:
One parent will be red (RR) and the other will be white (rr)
Explanation:
Incomplete dominance is a genetic scenario whereby one allele of a gene is not completely dominant over the other, hence, both alleles form an hybrid that has a different phenotype from both parents. In this case, it involves a gene coding for flower colour in snapdragon plants.
Allele for red color (R) is incompletely dominant over the allele for white color (r). Hence both alleles form an heterozygous (Rr) pink phenotype (pink) that is a blending of both parents phenotype. A red flower color will be produced when the plant is homozygous for the red allele (RR) while the white flower colour will be phenotypically expressed when the plant is homozygous for the white allele (rr).
In this case where two parents where crossed to produce several hundreds of offsprings that exhibited the pink color (hybrid, Rr). This means that the parents were most likely red (RR) and white (rr).
That is, RR × rr ------- All Rr
Incomplete dominance occurs when when both the alleles of a gene are partially expressed and resulting in an intermediate or a completely different phenotype.
If two plants are bred creating several hundred offspring all of which are pink in an incomplete dominance cross, the likely phenotype of their parents would be red phenotype and white phenotype.The parents would most likely have a red phenotype and white phenotype in which none of the two is dominant over the other leading to a partial/ incomplete expression in the offspringLearn more: https://brainly.com/question/13612556
7. If stimulant drugs increase the rate that neurons fire (neurotransmission), what do you
think depressants will do? Explain your answer
Answer:
Depressants inhibit neurons from sending impulses by binding to receptor molecules. This means that they decrease the rate that neurons fire. They give a drowsy/calming effect.
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why do elephants trow dust/ kick dust?
Answer:
Elephants use dirt as sunscreen, to counteract the damaging rays of the sun, elephants throw sand on themselves. Adult elephants will also douse youngsters with dust. When coming out of a bath in a river, elephants will often throw mud on themselves as a layer of protection.
Explanation:
The word meter derives from a Greek word that means:
Answer:
metron witch means measure
Explanation:
The word 'meter' comes from the Greek word 'metron' which means 'measure'. A meter is the base unit of length in the SI unit system and its definition has refined over time with technological advancements.
Explanation:The term meter is derived from the Greek word 'metron' which means 'measure'. The meter is the basic unit of length in the International System of Units (SI), and its definition has evolved over time for increased precision. Initially in 1791, a meter was defined as 1/10,000,000 of the distance from the equator to the North Pole. However, as science progressed and new technologies emerged, this definition was reshaped and is now based on the distance that light travels in a vacuum in a certain fraction of a second.
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Which two body systems allow humans to carry out the same life process as the ameba in the diagram
Answer:
The best answer would be C.
Explanation:
The body systems allow humans to carry out the same life process as the ameba in the diagram is digestive and circulatory system.
What are body systems?Body systems refers to various systems that comprises of organs,cells or toddies which help to carry out or perform.specufic tasks in the body for the sustainable of a person. Examples of body systems include digestive, circulatory,nervous, respiratory, excretory, immune system and so on.
Therefore, The body systems allow humans to carry out the same life process as the ameba in the diagram is digestive and circulatory system.
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.Within the visible spectrum of light, there are many colors: red, orange, yellow, green, blue, indigo, and violet. What characteristic of each of these colors makes this spectrum of light visible to the human eye?
Each color has a different wavelength.
Each color travels through different substances (mediums) .
Each color must travel a different distance to our eyes.
Answer:
Each of these colors make the spectrum of light visible to the human eye because each color has a different wavelength.
Explanation:
The cones of our eyes are a type of photoreceptor. The cone is the cells in the retina that respond to light. Each different cone is senstive to different wavelengths. In order to see different colors, the light reflected off of objects must have a specific wavelength in order to trigger one of the cone receptors.
The characteristic of each of these colors that makes this spectrum of light visible to the human eye is each color has a different wavelength. The correct option is A.
What is a wavelength?The distance between two successive crests or troughs of a wave is defined as its wavelength. It is measured in the wave's direction.
The light color spectrum contains seven pure spectral colors. They are red, orange, yellow, green, blue, indigo, and violet in order of decreasing frequency to increasing frequency.
Because of the inverse relationship, the order is reversed by wavelength. Violet is the color with the highest frequency. Red light, with the longest wavelength, is at one end of the spectrum. The shortest wavelength is blue or violet light.
Each of these colors has a different wavelength, which is what makes this spectrum of light visible to the human eye.
Thus, the correct option is A.
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what do kingdoms animalia and fungi have in common
Answer:
both kingdoms have living organisms made up of complex eukaryotic cells.
Explanation:
in the space below, write the equation of probability ( Fundamentals of Genetics )
Answer:
Can you give me some more information?
Plz help
Which of the following substances is most likely to be soluble in water?
A. a polar substance capable of forming hydrogen bonds
B. a molecule with hydrophilic heads and hydrophobic tails
C. a hydrophobic substance
D. a nonpolar substance
which is a neurons job
Answer:
The job of a neuron is to transmit information throughout the body. Specialized nerve cells help to communicate in chemical and electrical forms.
Explanation:
Hope this helps you :)
Imprinting is a type of blank behavior.
Answer:Learning
Explanation:
This is the jaw of the ancient saber-toothed cat, an ancestor of the modern tiger. You can see that the teeth of the saber tooth were nearly twice as large as the teeth of today's tigers. These teeth were so large that they stuck out the the saber-tooth's mouth when it was closed. Their food included large mammals such as elephants, rhinos, and other huge herbivores. Predict a change in the environment could have led to the gradual development of the smaller front teeth we see in the modern-day tiger. A) There was a change from tropical forests to grasslands. B) Competition from other big cats such as lions, cheetahs, and leopards. C) The disappearance of the huge herbivores that saber toothed tigers hunted. D) The large teeth were no longer an advantage for catching prey and survival.
Answer:
C
Explanation:
The most plausible environmental change leading to smaller front teeth in modern tigers compared to saber-toothed cats is the disappearance of large herbivores which initially required saber-tooths to have massive teeth for hunting.
Explanation:The question asks to predict a change in the environment that could have led to the development of smaller front teeth in the modern-day tiger, compared to their ancestor, the saber-toothed cat. Analyzing the given options, the most plausible change is C) The disappearance of the huge herbivores that saber-toothed tigers hunted. These large prey required the saber-tooths to have massive teeth for capturing and defeating them. When these herbivores declined, the selective pressure for such large teeth would have diminished, leading to the smaller, more versatile teeth seen in today's tigers that are adapted to hunt a more varied and less robust prey base.
Consider the following food chain:
grass → grasshopper → mouse → snake → hawk.
What percentage of the chemical energy
fixed by photosynthesis of the grass
(100%) is available to the hawk?
01%
1%
1%
10%
Answer:
0.01%
Explanation:
If the grass is 100%, then the grasshopper is 10%, the mouse is 1%, the snake is 0.1%, and the hawk is 0.01%. When you go up the trophic levels, you only get 10% of the energy left behind from the last level (in other words, you move the decimal point to the left by 1 place).
The food chain shows the percentage of energy that is available to the hawk which is in the form of 0.1% i.e option A is correct.
What is a food chain?The food chain is the web of food that flows a sequence of decreases of energy from the source and the law of energy follows the 10% law as for each and every stage of the ecological system there is drop of 10% energy used by the organisms.
The available energy at the bottom of the food chain is 100% which decreases to 10% in grasshopper is the primary consumer, this energy further decreases to 1% in secondary and tertiary consumers, and finally less than 1% is available for the hawk.
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Professor Tan studies water quality in streams near chemical plants. Which is a type of qualitative data that Professor Tan
should record during these studies?
the pH of the water
O any occurrences of unusual odors
O the oxygen concentration of the water
any changes in sizes of fish population
The occurrences of unusual odors in the water is considered as qualitative data in Professor Tan's studies. This is because such observations describe a quality of the water, not a quantity or measurable characteristic.
Explanation:Qualitative data refers to non-numerical information. While studying the quality of water near chemical plants, Professor Tan might record several types of data. However, among the options presented, any occurrences of unusual odors in the water would be classified as qualitative data.
Indeed, experiences of our five senses like smell, color, and taste can be considered qualitative because they describe the quality of something rather than a quantity. So, in the case of Professor Tan's studies, if he noticed a strange smell in the water and recorded this observation, that would be classified as qualitative data.
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× + 9≥11
helpppppppp
Answer:
x ≥ 2
Explanation:
x + 9 ≥ 11
subtract 9 from both sides
x ≥ 2
Answer:
BELOW
Explanation:
Step 1: Transport the number to other sid and reverse their sign
Step 2: Enter the numbers with their signs in calculator to calculation then
3. Write the final answer and done.
Here:
1. × + 9≥11
2. × ≥11-9
3. × ≥2
Hope that help you ^-^
(PLEASE HELP) Which of the following best describes the process of ecological
succession?
A)The natural cycle of carbon being exchanged between producers and consumers
B)Ecosystems being consistently altered by a number of natural disasters
C)Energy flowing through organisms in complex food webs
D)Communities replacing each other until a stable community is formed
Answer: try d
I think it’s d because ecological succession
Is the process in which an environment changes or develops overtime
Calculate the percent increase in population between year 1 and year 2, year 2 and year 3, and year 3 and year 4. Round
up or down to the nearest whole percentage. Show your work
Answer:
PLATO
Percent increase between years 1 and 2:
(5,780 – 3,845) ÷ 3,845 = 0.50 = 50% increase
Percent increase between years 2 and 3:
(15,804 – 5,780) ÷ 5,780 = 1.73 = 173% increase
Percent increase between years 3 and 4:
(52,350 – 15,804) ÷ 15,804 = 2.31 = 231% increase
Answer:
Submitted!
Hide Sample Answer
Percent increase between years 1 and 2:
(5,780 – 3,845) ÷ 3,845 = 0.50 = 50% increase
Percent increase between years 2 and 3:
(15,804 – 5,780) ÷ 5,780 = 1.73 = 173% increase
Percent increase between years 3 and 4:
(52,350 – 15,804) ÷ 15,804 = 2.31 = 231% increase
Explanation:
Si una enfermedad comienza a provocar la muerte de las poblaciones de lagartijas en las islas, ¿en cuál de ellas es más probable que la población de lagartijas sobreviva?
Answer:
It is likely that the lizards that live isolated from the rest (maybe in the farthest island) have more chances to survive because the disease needs to enter into the lizard's habitat to attack these populations. However, it is important to note that we need to know which is the cause of this disease in order to establish a working hypothesis.
What has to done to a bacterium in order to increase its chances of taking in plasmids from it environment
To increase our chances of getting our recombinant plasmids into bacterial cells, we will use “competent” cells. When cells are “competent,” it means that they are ready to receive plasmids. For the most part, you don't find competent cells in nature; instead, cells have to be made competent in the laboratory.
The body can be invaded by , which are harmful microorganisms that cause diseases. The body then initiates a(n) response, which may involve redness, swelling, and fever.
Answer:
Pathogens, inflammatory
Explanation:
Pathogens are defined as disease causing microorganisms and the inflammatory response involves redness, swelling, and sometimes fever.
Hope that was helpful!
The body can be invaded by pathogens, which are harmful microorganisms such as bacteria, viruses, fungi, and parasites that cause diseases.
What is immune response?When pathogens enter the body, the immune system initiates a response to fight them off. This response is called the immune response, and it involves a complex network of cells, tissues, and organs that work together to recognize and eliminate pathogens.
The immune response may involve a range of symptoms, such as redness, swelling, fever, and pain, as the body attempts to neutralize and remove the invading pathogens.
In some cases, the immune response can cause symptoms such as redness, swelling, fever, and pain, as the body attempts to neutralize and remove the invading pathogens.
These symptoms are typically a sign that the immune system is working to fight off the infection. However, in some cases, the immune response can also cause damage to healthy tissues and organs, leading to more severe symptoms and complications.
The body's immune response is a complex and highly coordinated system that is essential for protecting us from harmful pathogens. However, it is important to maintain a healthy lifestyle, such as through proper nutrition, regular exercise, and good hygiene practices, to support the immune system and minimize the risk of infections.
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The bald cypress tree produces seeds that are protected within cones. This tree is found in Florida swamps where heavy rains create floods. The floodwaters spread the cones throughout the swamps. What role do the floodwaters play in the life cycle of the bald cypress?
Answer:
seed dispersal
Explanation:
The baldcypress tree is a known tree of southern swamps. the floodwater act as an agent of seed dissemination of the baldcypress seed.
Floodwaters in the Florida swamps serve a vital role in the life cycle of bald cypress trees by spreading their seeds, which are protected within cones, throughout the swamp. This facilitates reproduction and aids in the survival and propagation of the species.
Explanation:The floodwaters play a crucial role in the life cycle of the bald cypress by serving as a dispersion agent for its seeds. Bald cypresses produce seeds inside cones, which get spread throughout the swamps during floods. This is integral to the reproductive process. The seeds have a superior evolutionary advantage as the hardened tissue coat prevents desiccation and allows dormancy until conditions are favorable for growth. Seeds are then scattered in an expanding geographic range, thereby avoiding competition with the parent plant.
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100 POINTS! CORRECT ANSWER GETS BRAINLIEST! How this somatic cell obtain twice as much chromosomes? Body Cells and Germ Cells Your body cells(somatic) are called diploid cells because they contain two copies of every chromosome. However, the two copies are not exact copies because one is from your mother and one is from your father. Diploid cells can be represented as 2n. In humans, the diploid chromosome number is 46. In addition to body cells, you also have germ cells located in your reproductive organs. Germ cells form gametes, or sex cells. The male sex cells are sperm and the female sex cells are eggs. Unlike body cells, gametes have only one copy of each chromosome. These cells are called haploid and can be represented as n. Human gametes thus contain 23 chromosomes. Only DNA in gametes is passed down to the organism's offspring. The DNA in body cells is not.Sexual reproduction involves the fusion of two gametes of different types, resulting in offspring that are a genetic mixture of both parents. The joining of these two gametes is called fertilization. When fertilization occurs, the nuclei of the egg and sperm fuse to form a single nucleus.
The chromosomes of the somatic cells become only to the egg cell. (Option B).
What happens during fertilization?
During fertilization, the nuclei of both the egg and sperm fuse to form a single nucleus in the zygote.
The zygote then undergoes cell division, and the resulting cells have the diploid chromosome number (2n), representing a combination of genetic material from both the mother and the father.
The chromosomes of the somatic cells do not become only the egg cell or only the sperm; rather, they contribute to the formation of a new diploid organism with a combination of genetic material from both parents.
The complete question is below:
How this somatic cell obtain twice as much chromosomes? Body Cells and Germ Cells Your body cells(somatic) are called diploid cells because they contain two copies of every chromosome. However, the two copies are not exact copies because one is from your mother and one is from your father. Diploid cells can be represented as 2n. In humans, the diploid chromosome number is 46. In addition to body cells, you also have germ cells located in your reproductive organs. Germ cells form gametes, or sex cells. The male sex cells are sperm and the female sex cells are eggs. Unlike body cells, gametes have only one copy of each chromosome. These cells are called haploid and can be represented as n. Human gametes thus contain 23 chromosomes. Only DNA in gametes is passed down to the organism's offspring. The DNA in body cells is not.Sexual reproduction involves the fusion of two gametes of different types, resulting in offspring that are a genetic mixture of both parents. The joining of these two gametes is called fertilization.
a. When fertilization occurs, the nuclei of the egg and sperm fuse to form a single nucleus.
b. The chromosomes of the somatic cells become only to the egg cell.
c. The chromosomes of the somatic cells become only to the sperm.
d. None of the above
In a laboratory experiment the time it takes a marble to fall from a table to the floor is recorded with a stopwatch. The results are 0.38 seconds, 0.37 seconds and 0.39 seconds respectively. Most students in the lab believe that these times are statistically the same, within experimental error. What would be a good method to confirm the results?
A) Change the height of the table and repeat the experiment.
B) Repeat the experiment from a much higher table.
C) Repeat the experiment from a lower table.
D) Do multiple trials at the same height.
Answer:D) Do multiple trials at the same heigh
Explanation: The guy claiming to have a big brain has lost their braincells.
Answer:
I got it right
Explanation:
In USA test prep
Why are invasive species dangerous to the environment?
True or False: Species diversity hurts ecological succession?
O
TRUE
O
FALSE
Type here to search
Answer: true .
Explanation:
PLEASE I NEED ASAP | What do Virginia watershed programs do? Check all that apply.
build dams
produce water filters
remove estuaries
protect wildlife
assist with flood reduction
Answer:
Assist with flood reduction.
Explanation:
The Virginia watershed program was organized and directed the secretary of Agriculture to assist local governments in protecting them against flood during storms within the sub - basins of watersheds. The basis of the Virginia watershed programs is to assist the local governments to protect, restore and enhance local watersheds. It's provide both technical and financial support.
A watershed is an area of land that drains into a lake or river.
a. build dams, d. protect wildlife, e. assist with flood reduction
How many different nitrogenous bases do you see?
Answer:
There are four different nitrogenous bases.
Explanation:
These four include adenosine, thymine, cytosine, and guanine for DNA. Hope this helped :)
There are four different nitrogenous bases. These four include adenosine, thymine, cytosine, and guanine for DNA.
What is the explanation for this?The explanation for the presence of four different nitrogenous bases in DNA is due to the specific pairing rules that govern the structure of DNA.
Adenosine pairs with thymine (A-T) and cytosine pairs with guanine (C-G) through hydrogen bonding. These base pairs form the rungs of the DNA double helix.
The pairing is highly specific, with adenosine always pairing with thymine and cytosine always pairing with guanine. This complementary base pairing allows DNA to replicate accurately and carry genetic information.
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What is the difference in trophic level efficiency between herbivores and carnivores.
Answer:
carnivores eat meat and herbivorres eat plant
Explanation:
Answer:
Carnivores have a trophic level of 3 and Herbivores have a trophic level of 2 I hope I understood the question :)
How much higher is the risk of lung cancer in smokers than in nonsmokers?
Answer: smokers are 15 to 30 times more able to get cancer than non smokers