The nutrient canal is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Answer: b
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In examining an unknown animal species during its embryonic development, how can you be sure what you are looking at is a protostome and not a deuterostome?
A) There is evidence of cephalization. B) You see a well-developed coelom. C) The animal is triploblastic. D) The animal is clearly bilaterally symmetrical. E) You see a mouth, but not an anus.
Kinesis is
A. a movement toward a stimulus. B. a movement away from a stimulus. C. a nondirectional movement in response to a stimulus D. the cessation of movement in response to a stimulus E. movement due to associative learning
Based on the experimental design, which variable was the dependent variable?
A. Germination rate B. Type of light C. Seeds in the dark D. Moisture E. Temperature
Answer the following statements true (T) or false (F)
1. Most biologists would agree that the most important metabolic pathway of living organisms is photosynthesis. 2. The rise of photosynthetic organisms increased the concentration of CO2 in the atmosphere. 3. Grana, thylakoids, and chloroplasts are cellular structures important to the process of photosynthesis. 4. The primary photosynthetic pigment, chlorophyll a, reflects most orange light that reaches it. 5. The light reactions use ATP as their energy source.