Which of the following is responsible for the loss of amphibian populations around the world?
A. All of the answer options are correct.
B. habitat loss
C. pesticides
D. herbicides
E. fungal diseases
A
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Why do flatworms move away from light sources?
A. to avoid skin cancer B. to avoid the mutagenic effects of direct sunlight C. to hide from predators D. their prey are always found in dark environments
Root systems that are adapted to absorb water and nutrients from the upper layers of soil are called a(n) ____
a. adventitious root systems b. prop root systems c. fibrous root systems d. taproot systems e. storage root systems
Filter feeders on coastal shelves tend to dominate in areas that have:
a. moving currents and coarse sediments. b. no currents and fine sediments. c. silty areas. d. muddy areas.
Bacterial translation is inhibited by ________ RNA, which is complementary to a portion of a specific mRNA
Fill in the blank(s) with correct word