Proteins assist the human body in which of the following ways?
A. chemical signaling
B. fighting off infections
C. chemical reactions
D. all of the above
Answer: D. all of the above
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Plant root nodules are
A) formed from gall-rotting bacteria that decompose plant roots. B) harmful to plants, because the bacteria outcompete the plants for nutrients. C) sites where nitrogen fixation occurs. D) structures created by fungi and are found in all agricultural crops.
Identify the pattern of Mendelian inheritance represented in the pedigree above and explain how you made this determination
Which statement best explains the finding that the nuclear DNA of house cats and African wild cats has a very high degree of similarity?
A. House cats and African wild cats share a recent common ancestor. B. Divergent morphological evolution has occurred. C. House cats and African wild cats are both members of the family Felidae. D. Environmental pressures were the same.
Root hairs grow actively in which area of the developing roots?
A. zone of maturation B. zone of elongation C. endodermis D. root cap E. zone of cell division