This branching tree diagram is most likely used to represent the theory that suggests
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It suggests that all species share a common ancestor and that change occurs over time.
This scientific theory, introduced by Charles Darwin, proposes that all living organisms on Earth are interconnected through a shared ancestry. According to this concept, the diversity of life arises through a gradual process of descent with modification. The idea is that species change over time through the mechanisms of natural selection, genetic drift, and other evolutionary forces.
The common ancestor represents the starting point from which different species have branched out, adapting to diverse environments and ecological niches. The evidence supporting this theory includes fossil records, comparative anatomy, molecular biology, and observations of natural selection in action. In essence, the theory of evolution serves as a unifying framework in biology, explaining the unity and diversity of life on Earth.
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All species share a common ancestor and that change occurs over time
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Describe the different abiotic and biotic parts of an ecosystem. Identify and explain what organisms lie on each of the trophic levels.I have the different parts of an ecosystem but I just need help with the second part.
B: cetaceans
C: marsupials
S: monotremes
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S: monotremes................................
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Answer:
The difference between mitosis and meiosis is that....
Mitosis produces two daughter cells with the same number of chromosomes as the parent cell.
Meiosis results in four daughter cells harboring only half of their parent's chromosomes, which underwent recombination.
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Explanation:
Circulatory as the word suggests, circulates throughout the body. Circulatory system is a group of network which consist of blood, blood vessels, and the heart. This network in turn supplies the necessary tissues in the body.
The circulatory system passes through each and every organ and system in the body. Our body cells and the circulatory system are connected in such a way that the transpiration of oxygen is done in an efficient manner. Apart from this, circulatory system also plays an important role in our digestive system.
At the organ level, the circulatory system works to deliver oxygen, nutrients, hormones, and other essential substances to various organs and tissues in the body, while also removing waste products and carbon dioxide.
The process starts with the heart, which acts as a powerful muscular pump. The heart contracts rhythmically to pump oxygenated blood out of the left side of the heart into the main artery called the aorta. From the aorta, the oxygenated blood is distributed to all organs and tissues of the body through a branching network of arteries. Arteries progressively divide into smaller arterioles, ensuring blood supply reaches individual organs.
Once inside the organs, arterioles further divide into microscopic blood vessels called capillaries. Capillaries are crucial in the exchange of oxygen, nutrients, and waste products between the blood and the surrounding cells. Oxygen and nutrients diffuse out of the capillaries into the cells, providing them with the necessary substances for their function and survival. Meanwhile, waste products and carbon dioxide produced by the cells diffuse from the cells into the capillaries, which then carry them away for elimination.
After passing through the capillaries, blood begins its journey back to the heart. Capillaries converge to form venules, which then merge to form larger veins. Veins gradually increase in size and converge into the superior and inferior vena cava, which return deoxygenated blood to the right side of the heart. The right side of the heart pumps this deoxygenated blood to the lungs through the pulmonary arteries, where it gets oxygenated and releases carbon dioxide. Oxygenated blood then returns to the left side of the heart through the pulmonary veins, completing the circulation loop.
This continuous cycle of blood flow ensures that every organ and tissue in the body receives the necessary oxygen and nutrients while waste products are efficiently removed. It is through this complex network of blood vessels and the pumping action of the heart that the circulatory system operates at the organ level, maintaining the overall functioning and health of the body.
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B. Fossil fuel reserves will never be depleted.
C. Fossil fuels are easily renewed.
D. Fossil fuel use does not affect the environment.
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Answer:
The correct answer is A. Fossil fuels are cheaper than alternative forms of energy
Explanation:
Fossil fuels are made from organic matter of dead animals and mainly plants who were buried in the soil over hundred and thousand of years. We use fossil fuels because they are the best source to provide energy in the current time.
Fossil fuels are easily available and are present in very large amount which is the main reason for it to be cheaper. Fossil fuels like coal, petroleum or natural gas are more cheaper and efficient than alternative forms of energy like solar or wind energy.
But in future these fossil fuel will not be there and alternative forms of energy will become the primary and cheaper source of fuel.
Answer: Option A
Explanation:
Fossil fuels are formed inside the earth when dead plant and animal remains have enormous pressure on them. They get converted into coal and other types of fossils fuels.
They are not that that costly and is used by people at different places as it is so economical.
These are cheaper than other other sources of fuels. These are available in huge amount inside the earth and can be used for a very longer period of time with a very cost.