Which of the following obtain energy from
light and carbon from organic sources?
a. photoautotrophs
b. chemoautotrophs
c. photoheterotrophs
d. photoautotrophs
e. more than one of these
C
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What is a characteristic of most animals?
A. They have Hox genes. B. They are autotrophic. C. They lack an extracellular matrix of proteins such as collagen. D. They have cell walls.
During one cycle, the sodium-potassium pump binds and moves.
What will be an ideal response?
Which of the following would be analogous structures?
A. the wing of a bird and the wing of a bee B. the wing of a bee and the wing of a bat C. the wing of a bat and the wing of a bird D. All of these answers are correct.
All of the following are lipids except
A. starch. B. phospholipid. C. wax. D. cholesterol. E. triglyceride.