Biology

Question 9What does it mean if the G2 checkpoint fails during cell Division
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Red squirrels and gray squirrels have been the native species on an island for many years. A few years ago, black squirrels entered this island. The black squirrel is an invasive species. Invasive species aren't native to the ecosystem. They move into an ecosystem because of natural changes or human intervention. Red squirrels and black squirrels have identical food requirements, but gray squirrels have a different diet. What three effects will these events have on the island's squirrel population?
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classify each characteristic according to whether it is true for an ameoba a clock or both
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Comparing the skeletons of which of the following fish wouldbest show the evolution of a fish species?a male fish and a female fish that could produce offspringthe same fish just before it received a cut and after it healeda fish that lived recently and a fish that lived a long time agothe same fish just after it hatched and when it was full-grown
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is scientific method used to date fossils should be what
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Which of the following statements are not true of carbohydrates?A. Triglycerides are the most common type.B. Monosacharrides, disacharrides, and polysacharrides are the most common types.C. They are the most readily available source of energy for organisms.D. Certain carbohydrates are enzymes or catalysts.
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Question 6 (1 point) SavedHaving 1 leader CAN help to get through a task and reduce arguingTrueFalse
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4. Different organisms are made of different cell numbers. What is therange in the number of cells that organisms can be made of? (smallest tolargest) A. 1 cell to about 100 cells B. 1 cell to many millions of cells C. 100 cells to about 1,000 cells D. 100 cells to many millions of cells
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What is a purine and a pyrimidine? Name them.
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Cardiac muscle causes movement in the
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Why does the northern hemisphere experience Spring in March, while the Southern Hemisphere experiences fall?
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Select whether each statement is describing xylem or phloem. This tissues function is to transport sugars from the leaves to the other areas of the plant. This tissues function is to transport water from the roots to the leaves.
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Explain how Anne and Peters discussion at the end of Scene I leads to character development.
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PLEASE HELP!! ASAP!! I JUST NEED THE ANSWER!!! I WILL MARK YOU BRAINLIEST!!! Which one of the following most accurately demonstrates the flow of energy in an ecosystem? asun's light > predators > producers bproducers > predators > sun's light csun's light > producers > predators dpredators > sun's light > producers
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Which era makes up the vast majority of Earth's history?O A. MesozoicO B. PalezoicO C. CenozoicO D. Precambrian
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What is an example of a direct economic value of biodiversity? *O release of oxygen by green plantsO diseases caused by bacteriaO vaccines created from bacteriaO drinking water provided by watersheds
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The membrane that lines the thoracic cavity walls is the
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How are antibodies and T-cells related?T-cells produce antibodiesAntibodies produce T-cells.Antibodies and T-cells are both immune cells.Antibodies and T-cells are both generated by the lymphatic system.
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Oil is widely used because it...
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A central nervous system is also responsible for programming _______ and _______. PLEASE HELP!!!!
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Examination of the amino acid composition of a newly isolated protein indicates the presence of 10 lysines, 5 arginines, and 3 methionines. When the protein is treated with cyanogen bromide, four peptides are obtained. When it is treated with trypsin, 15 peptides are obtained. What do these results suggest regarding the sequence of the protein?
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The sugar in sugar water can be removed by
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Example of how organisms that were previously thought of as related are actually more genetically related to organisms outside their species?
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What is the role of a host in viral reproduction? Please explain
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