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Questions in biology

[Homework Help] When Mendel crossed two hybrid plants for stem height (Tt), what results did he always get?

[Homework Help] Sugar that occurs in DNA but not in RNA: A. Deoxyribose B. Ribose C. Uracil D. Cytosine E. Thymine

[Homework Help] Asexual reproduction is not as widespread in animals as it is in plants.

[Homework Help] During digestion, why is it necessary to break up fat into tiny droplets?

[Homework Help] All of the following are population characteristics EXCEPT: A. number of individuals B. phenotype C. sex ratio D. age distribution E. death rate

[Homework Help] As rain mixes with chemicals such as sulfur dioxide in the air, acid rain is produced. This may result in: (A) lowering the pH in ponds, thus limiting the survival of many organisms (B) lowering the pH in ponds, thus affecting water temperature (C) raising the pH in ponds, thus encouraging the growth of organisms (D) raising the pH in ponds, thus limiting animal development (E) depleting atmospheric carbon dioxide available for photosynthesis

[Homework Help] Which organic molecule is responsible for the insulation of internal organs against shock?

[Homework Help] The pH of human blood is slightly basic. Which of the following is most likely to be the pH of human blood? A. 10.6 B. 7.4 C. 7.0 D. 6.4 E. 4.6

[Homework Help] Oxygen is released as a waste product by plants during the process of photosynthesis. Animals take in this oxygen and release it as carbon dioxide during the process of respiration.

[Homework Help] What are the three different levels of diversity, primarily within the animal area?