Answer:
35,797 feet
Explanation:
The deepest point in the ocean is located in the Mariana Trench off the coast of Japan at 35,797 feet (10,911 meters). The temperature of the water is just above freezing, and the pressure is an incredible eight tons per square inch.
Which part of a flower grows into the fruit?
Answer:
Vernicia fordii
Explanation:
Answer:
The ovary
Explanation:
Mutations are avoided during replication because DNA polymerase is able to __________ A) repair itself B) repair the DNA C) encode a message D) add more codes. Please help
Mutations are avoided during replication because DNA polymerase is able to add more codes.
How can you tell the relative ages of rocks
Answer:
In horizontal rock layers, the oldest layer is at the bottom. Each higher layer is younger than the layers below it.
Explanation:
Answer:
Its difficult to determine the absolute age so geologists use method to find a rock's relative age. Use the: LAW OF SUPERPOSITION: in horizontal sedimentary rock layers, the oldest layer is at the bottom. Each higher layer is younger than the layers below it.
Explanation:
(Rockaway Middle School)(Relative Ages Of Rocks)
what are sporophytes and gametophytes
A. Two different forms a plant can have
B. Two different kingdoms in the domain Eukarya
C. Two different kinds of seeds
D. Two different types of vascular systems
A: Two different forms a plant can have
When your eyes feel tired from looking at close objects, it helps to look at distant objects for a few minutes. Why do you think this helps?
Answer:
When we look at close object, it utilizes energy for muscle contraction and some relation due to which eyes feel tired (muscle contraction helps the aye to focus various objects according to the distance). After that when we look at distant objects they seem to be clear because in doing so our muscles get relaxed that's why the objects at distant appears clear for a while.
What is an organism’s niche?
The role that the organism plays in the environment
The term niche, when used in the science of ecological biology, is used to define an organism's role in an ecosystem. Not only does its niche include the environment that a given organism lives in, but it also includes the organism's "job" in that environment.
An organism’s niche is the role an organism plays in a community.
In biology, the ecological niche refers to the function, role and response that an animal or plant species fulfills in a habitat or ecosystem.
The ecological niche of an organism depends on where it lives, what it does (how it transforms energy, behaves, reacts to its physical and biotic environment and transforms it), and how it is influenced by other species.
The role that individuals of a species play in a community is unique in any given ecosystem.When the niche of two species corresponds to similar functional roles in the same ecosystem, the phenomenon called interspecific competition will be triggered.Therefore, we can conclude that an organism’s niche is the role an organism plays in a community.
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what planet has a very hot surface and is most like earth in size
Venus is closest to earth in mass and size. It is also very hot. Lol
Answer:
Venus
Explanation:
Temperature- Venus has a thick atmosphere, which traps heat. It is the hottest planet in our solar system. The surface temperatures can melt sturdy substances, such as lead.
Size- This planet is the closest to Earth's inner structure (with the cores) and also most similar in size.
These are specialized cells that can survive in harsh conditions. What are they called?
Answer:
If this is wrong im very sry, but i belive the answer is white blood cells
Explanation:
These are the cells that fight off infections and bactieria that is not sopposed to be in the human body, or any other living creature.
a scientist studies a species of duck. the male and female are about the same size. the females are brown, and the males are a bright mix of blue, white, and green. what can the scientist conclude about these ducks?
A. the females compete for mates.
B. the males choose mates.
C. the males compete to fertilize.
D. the females choose mates.
-apex
Answer:
Option D, the females choose mates
Explanation:
This is a common way to fertilize in animals where male put in efforts to allow the female to choose their partners. Here, in this case the male ducks are of different bright colors thus they would compete among themselves to attract the female ducks for mating. Therefore, a female duck gets the opportunity to choose the best partner for itself. This is a way of natural selection to fertilize.
Hence, option D is correct.
Answer:
d
Explanation:
Which of these indicates equilibrium in the community? A. seral B. pioneer C. ultimate D. intermediate E. climax
Answer:
E. climax
Explanation:
The point of equilibrium in a community is not the most common thing in nature, in fact it is a relatively rare one, though there are enough examples that have shown how this is achieved and how it works. In essence, the point of equilibrium is when there's a small number of species that are dominant and prominent, and they manage to create a stable ecosystem. The point of equilibrium in a community is also known as a climax community. A community of this type appears when the web of biotic interactions between the organisms becomes so intricate that there's simply no place for another species to be admitted in it.
The diagram shows the set-up for an electric door bell. Which best explain why the bell would not ring in this set up? A. The circuit is open. B. The electromagnet has an iron core. C. The circuit is closed. D. The electromagnet is made of steel.
The circuit is open. Thus option A is correct.
What is the definition of an open circuit?An open circuit is one in which the passage of electricity has been disrupted by a break in the path.
You complete an electrical circuit when you press a doorbell button, allowing household electricity to flow through the doorbell's inbuilt electromagnet. The electromagnet's magnetic field is then employed to power a device that produces the doorbell sound.
If that circuit will get open as shown in the image then the bell would not ring in this case.
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what is holocrine gland?
Answer:
A gland whose secretion consists of its own disintegrated secretory cells along with its secretory product. I think this is what a holocrine gland is im not entiery sure
Explanation:
A holocrine gland is a type of exocrine gland that secretes products by rupturing the secreting cell, with sebaceous glands being a common example. Holocrine secretion involves the death of the mature cell, which releases secretory products along with cell remnants, and is succeeded by new cell differentiation from surrounding tissue.
Explanation:What is a Holocrine Gland?
A holocrine gland is a type of exocrine gland that releases its product by rupturing and destroying the entire gland cell. The mature cell accumulates secretory products and, upon bursting, releases these products along with the remnants of the dead cell. This process is known as holocrine secretion. One of the most common examples of holocrine glands in the human body is the sebaceous glands, which secrete oils that lubricate and protect the skin and hair. After the gland cells release their contents and are destroyed, new cells differentiate from the surrounding tissue to replace them, ensuring continuous function.
Other types of glandular secretion include merocrine secretion, where cells secrete their products without damage, and apocrine secretion, where the top part of the cell (apex) is released with the secretion. Holocrine glands, such as the sebaceous glands, are distinct because they result in the death of the secreting cells. The process of holocrine secretion is highly effective for the continuous supply of oils essential for skin and hair health.
Keystone species are species that play a critical role in balancing an ecosystem. A classic keystone species is the gray wolf, which preys on large herbivores such as deer. The gray wolf was hunted nearly to extinction because it also killed farmers’ livestock. How would the local ecosystem by affected by removing the gray wolf?
Answer:
The population of herbivores would likely increase.
Explanation:
The keystone species - Gray Wolf - are especially useful because they essentially regulate the population of herbivores - like deer - they are a good predator to have to maintain a healthy ecosystem. Without them, the herbivore population would likely continue to grow and this would mean that greenery and the food that the deer eat ( as well as other animals ) would slowly be pushed to lower numbers. This would likely have an effect on the landscape in the area too.
Removing a keystone species like the gray wolf from an ecosystem causes significant imbalances, leading to overpopulation of herbivores, overgrazing, reduced vegetation, and a decrease in biodiversity. These changes can trigger a trophic cascade and potentially collapse ecosystem functioning. Reintroduction of such species can help restore ecological balance.
Impact of Removing a Keystone Species
As predators, gray wolves manage the populations of large herbivores, keeping the ecosystem in balance. Without wolves, populations of animals like deer may increase unchecked, leading to overgrazing. This excessive herbivory can reduce vegetation, particularly in riparian areas, which are crucial for biodiversity. The decline in plant life can lead to soil erosion and degradation of water quality, further impacting other species within the ecosystem. Keystone species also indirectly influence other animals in the ecosystem. For example, by controlling coyote populations, wolves allow smaller prey species which coyotes feed upon to thrive, and by reducing elk populations, they facilitate the re-vegetation of riparian habitats, encouraging the diversity of species in those areas. If a keystone species is removed, this can cause a trophic cascade, a domino effect where the absence of the top predator disrupts the entire food web. Over time, this can lead to a collapse in ecosystem diversity and functioning. Conversely, reintroduction of keystone species has been observed to have positive effects on the biodiversity and ecological balance within their environments, as shown in the Yellowstone wolf reintroduction project.
Mendel’s pea plants had either purple or white flowers. This means that the plants
The plants were expressing recessive or dominant traits through their flower colours
Answer:
The answer is that the plants have two alleles of the gene responsible for the color of flowers.
Explanation:
A gene is a part or section of a chromosome that has the genetic information or the code for a particular protein like flower color. Genes may have two or more forms of the particular gene, these forms are called alleles.
There are two alternative forms of the gene for flower color in the case of Mendel's pea plant. The presence of two alternative or distinct forms displays that there must be two alleles of the gene.
Thus, the correct answer that the plants have two alleles of the gene responsible for the color of flowers.
Which system moves the body? integumentary endocrine digestive muscular
Answer:
muscular system helps move the body
Explanation:
Answer:
Muscular system
Explanation:
The muscular system is made of three types of muscles namely, smooth muscles, cardiac muscle, and skeletal muscles. Muscles are also attached to bones. Contraction of muscles leads to movement of the body. The main function of the integumentary system is to cover and protect the body. The digestive system is involved in ingestion of food, its breakdown into simpler elements and their absorption. The endocrine system maintains homeostasis by secretion of hormones.
Which pattern of evolution is seen in the relationship between algae and coral ?
Answer:
The mutually beneficial relationship between algae and modern corals ... In addition to confirming that symbiosis dates back to the Triassic, the study found that the corals ... Symbiotic corals exhibit banded growth patterns
Answer:
coevolution
Explanation:
plato
Which phrase best describes a community?
i dont now but i think its c
Answer:
all populations of organisms in an living area
Explanation:
it makes more sense than the other 3 ;/
Charles Darwins observation adventures of different species on the Galapagos islands have many similar physical characteristics supports the hypothesis hypothesis that these finches
Answer:
share the same ancestors
Explanation:
Charles Darwin noticed at the Galapagos Islands that the finches, despite obviously having unique traits that classified them as separate species, they actually had many things in common as well, much more than differences. His hypothesis was that all of the different finches on these islands actually have the same ancestors in a small group of finches that migrated to the islands. As the birds started to occupy different niches, they started to specialize, which was mostly manifested in their beaks, as the specialization was mostly in accordance to what they ate, thus gradually giving rise to several different species.
Darwin's study of Galapagos finches supported the idea of adaptive radiation, where one species evolves into many to fill various ecological niches, exemplifying natural selection.
Explanation:Charles Darwin's observation of finches on the Galapagos Islands led to the hypothesis that the variations in beak size and shape were indicative of adaptive radiation. This concept suggests that the finches originated from a single ancestral species and diversified into multiple species, each with adaptations specific to their environment, such as beak structure tailored to different food sources. For instance, some finches evolved strong, thick beaks to crack seeds, while others developed slender, sharp beaks suited for catching insects. Darwin's work provided crucial evidence for his theory of evolution by natural selection.
Insects are responsible for the destruction of a significant percentage of potential food harvests every year. Please select the best answer from the choices provided T F
Answer:
T (True)
Explanation:
The insects are very dangerous for the agricultural sector. Each year, the insects manage to cause enormous damage to the crops worldwide, thus causing both financial damage, and shortage of food on the market. In general, the damages done by the insects are in the developing and especially in the less developed countries. The reason for that is that the agriculture in these countries is still done in more primitive way, and the modern day chemicals for protection are either used little, or are totally absent. This leaves the door open for the pests like the insects to feast upon the crops and totally destroy them.
Answer: The answer is true
Explanation: because they destroy them and make them not usable
Compare and contrast open, closed, and isolated systems. Be sure to discuss the exchange of energy and exchange of matter, and provide at least one example of each.
Answer:
It can exchange both matter and energy, exchange energy but not matter, Isolated systems can exchange neither energy nor matter
Open, closed, and isolated systems refer to how matter and energy are exchanged with surroundings. Open systems allow both matter and energy exchange, illustrated by a pot of boiling water. Closed systems allow energy but disallow matter transfer, like a sealed soda bottle, while isolated systems, purely theoretical, would allow neither.
Explanation:An open system allows the exchange of both energy and matter with its surroundings. An example would be a pot of water on a stovetop, where heat (energy) can be lost to the air, and water can evaporate (matter) into the surrounding environment.
A closed system permits energy exchange but not matter. An example would be a bottle of soda with its cap on. Energy can be exchanged with the surroundings (the soda can be cooled or heated), but the matter (carbon dioxide in the soda) can't escape.
An isolated system allows neither the exchange of energy nor matter with its surroundings. An ideal example, although it doesn't exist in reality, would be a perfectly insulated box in which no energy or matter can enter or exit.
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Describe at least 3 ways that plastics can be reduced in the community.
Stop using plastic straws, use paper bags, and stop using plastic water bottles
Lightning strikes a tree and stars a forest fire. This is an example of the affecting the .
Lightning strikes a tree and stars a forest fire.This a is an example of the 'atmosphere' affecting the 'lithosphere'.
Answer:
atmosphere affecting the lithosphere
Explanation:
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities suc
as moving muscles. Explain the energy transformation in this process.
Answer:
organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP.
Explanation:
What are two of the products of the Krebs cycle
Answer:
What are two of the products of the Krebs cycle
the 2 molecules of pyruvic acid are broken down into carbon dioxide and during that process NADH and FADH2 molecules are made
NADH and FADH2 are the two products of the krebs cycle.
~batman wife dun dun dun....
Answer:
Krebs's cycle or citric acid cycle is a metabolic pathway in which substrate is broken down into a final product to yield energy. The two products of Kreb's cycle are NADH and [tex]\bold {\text{FADH}_{2}}[/tex]
Explanation:
Kreb's cycle is also known as the tricarboxylic acid pathway, TCA, which releases the stored energy by the oxidation of acetyl coenzyme A. The cycle takes place in the matrix of mitochondria. The acid yields NADH and [tex]\bold {\text{FADH}_{2}}[/tex] , which are high-energy molecules used in the electron transport chain. NADH stands for nicotinamide adenine dinucleotide and hydrogen, whereas [tex]\bold {\text{FADH}_{2}}[/tex] stands for flavin adenine dinucleotide.
Therefore, the two products of Kreb's cycle are NADH and [tex]\text {FADH}_{2}[/tex].
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What are the assumptions for the Hardy-Weinberg equation? What does it mean when a population is in Hardy-Weinberg equilibrium?
Answer:
the Hardy-Weinberg assumptions are: no mutation, random mating, no gene flow, infinite population size, and no selection.
When a population is in Hardy-Weinberg equilibrium? Evolution will not occur
***The Hardy-Weinberg equilibrium can be disturbed by a number of forces, including mutations, natural selection, nonrandom mating, genetic drift, and gene flow***
Explanation:
In biology, the Hardy-Weinberg principle assumes a large population size, isolated gene pool, random mating, no mutations or natural selection, with genotype and allele frequencies remaining constant at equilibrium. Allele frequencies are used to calculate genotype frequencies; for instance, if the frequency of homozygous recessive (aa) is 0.04, the frequency of the recessive allele (q) is 0.2 and of the dominant allele (p) is 0.8, leading to a heterozygote (Aa) frequency of 0.32.
Assumptions for the Hardy-Weinberg Equation
The Hardy-Weinberg principle is grounded in several key assumptions to predict the genetic variation within a population. First, the population must be large to minimize random genetic drift. Second, there should be no gene flow, meaning the population is effectively isolated with no migration in or out. Furthermore, mating must be random to ensure all alleles are equally likely to be passed on to the next generation. Additionally, mutations should not occur so that allele frequencies remain constant. Finally, there should be no natural selection, which implies that all individuals contribute equally to the gene pool.
Hardy-Weinberg Equilibrium
When a population is in Hardy-Weinberg equilibrium, the allele and genotype frequencies remain constant from one generation to the next, in the absence of evolutionary pressures. A population in equilibrium must meet the assumptions discussed above. In practice, it's unlikely for natural populations to remain in equilibrium due to factors like genetic mutations, natural selection, and non-random mating patterns.
Allele and Genotype Frequencies
An allele is a variant form of a gene. Genetic equilibrium suggests that the frequency of alleles in a population's gene pool remains constant over time in the absence of evolutionary forces. The genotype frequencies, which are expressions of allele combinations such as AA, Aa, and aa in a population, can be projected based on allele frequencies (p for dominant allele A and q for recessive allele a) if Hardy-Weinberg conditions are met.
Example Calculation
If we assume that the frequency of the homozygous recessive genotype (aa) is 0.04 (4%), we can find the square root of this frequency to determine q, which is the frequency of allele a. Thus, q equals 0.2. Because p + q = 1, we find that p, the frequency of allele A, equals 0.8. To calculate the frequency of the heterozygous genotype (Aa), we use the equation 2pq, which equals 2(0.8)(0.2) or 0.32 (32%).
Why do cells make a copy of their dna
Answer:
During mitosis, a cell divides into two identical cells referred to as daughter cells. In order for both cells to be fully functional and to be able to mature, they each need a complete set of DNA.
Cells needs a copy of their DNA before existing cells divide to produce new cells.
DNA ReplicationCells make a copy of their DNA in other to ensures that each daughter cell gets a copy of the genome, and therefore, ensure successful inheritance of genetic traits.
Every time a cell undergoes mitosis, various enzymes work to split each DNA strand in half, and then replace the missing half on the separated strands with corresponding nucleotides, leaving you with two identical strands.
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Which of the following is responsible for about half of the heat generated by Earth's core?
A. Sunlight
B. Residual heat from Earth's formation
C. Frictional heating
D. Radioactive decay of elements
half of the heat produced by the Earth's core is:
D. The decay of radioactive elements
Further Explanation
Geothermal energy is heat energy that is contained and formed in the bowels of the earth. geothermal energy comes from technological activities that exist in the earth that have occurred since the earth was created. Besides, geothermal heat also comes from sunlight that is absorbed by the earth's surface. In addition to the heat sources mentioned earlier, geothermal is thought to originate from the following phenomena:
- the decay of radioactive elements below the earth's surface.
- electromagnetic effects that are influenced by magnetic fields that exist on earth.
- the heat released by heavy metals due to sinking into the center of the earth.
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Details
Grade: Middle School
Subject: Biology
keyword: geothermal, heat produced by the earth
Answer:
D. Radioactive decay of elements
Explanation:
Which of these indicates equilibrium in the community? A. seral B. pioneer C. ultimate D. intermediate E. climax
Answer:
E. climax
Explanation:
The point of equilibrium in a community is not something that happens very often in nature, in fact it is relatively rare, but there are several examples that have shown how this works. When an equilibrium is reached in a community, it is basically a community consisted of dominant, prominent, small number of species that manage to create a stable community. The state of equilibrium is also known as a climax community. This type of community appears when there's a situation in which the web of biotic interactions between the organisms becomes so intricate that there's simply no way that another organisms can be admitted into the community.
Directions: Select ALL the correct answers,
Which of the following statements about genes and traits is true?
A single trait can be controlled by multiple genes,
A single gene can control a single trait.
A single trait can alter multiple genes.
A single gene can influence multiple traits,
A single trait can be controlled by multiple genes, and a single gene can control a single trait.
Explanation:A single trait can be controlled by multiple genes. For example, most human traits, such as height, skin color, and weight, are controlled by multiple genes. This is known as polygenic traits. Multiple genes can interact to confer a specific characteristic or feature.
On the other hand, a single gene can control a single trait. For instance, traits like cleft chin or blood type are controlled by a single gene with two or more alleles. In the case of blood type, there are three different alleles that encode ABO blood type.
Therefore, both statements that a single trait can be controlled by multiple genes and that a single gene can control a single trait are true.
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water pollution as a result of fertilizer runoff from farms is harmful because it initially
Answer:
Water pollution as a result of fertilizer runoff from farms is harmful because it initially changes the chemical composition of nearby streams and lakes !
Explanation:
Water pollution as a result of fertilizer runoff from farms is harmful because it initially change the chemical composition and nutrient level of near by water bodies( streams and lakes).
Effect of fertilizer runoffFertilizer increases the level of nitrogen and phosphorous in the waterbodies that can cause eutrophication.
Eutrophication can cause algal boom, reduction of dissolved oxygen content, lowers the penetration of sunlight and affect the fish and aquatic life.
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