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Questions in biology

[Terjawab] Explain why carbon atoms are important in organic molecules. Include information about the kinds of bonds carbon can form.

[Terjawab] How does the structure of the saguaro cactus stem benefit the plant?

[Terjawab] Evolution is change in a population over time and includes the gene pools of that population. How does biogeographic isolation allow for the change of gene pools over time? A) Biogeographic isolation affects the random changes that take place within gene pools. B) Biogeographic isolation affects the changes in gene pools that result from which organisms are breeding. C) Biogeographic isolation determines who will win competition for mates. D) Biogeographic isolation determines the time that populations will breed.

[Terjawab] According to the dichotomous key, the two organisms seen in the picture belong in which two kingdoms? A) bee - Animalia; flower - Plantae B) bee - Animalia; flower - Protista C) bee - Protista; flower - Plantae D) bee - Eubacteria; flower - Protista

[Terjawab] What organ system is most closely connected to the respiratory system in earthworms?

[Terjawab] Which example best represents the adhesion, cohesion, and surface tension of water?

[Terjawab] How is anaphase II similar to anaphase in mitosis?

[Terjawab] What does a pulley consist of?

[Terjawab] Why do macromolecules differ in the amount of energy they contain?

[Terjawab] State two ways living and nonliving things differ.