Which of the following correctly describes these two figures?
1.The upper figure shows a true coelom while the lower figure shows a pseudocoel.
2.The upper figure is characteristic of vertebrates while the lower figure is typical of flatworms.
3.Animals with the digestive system in the upper figure can only digest liquid foods.
4.In both cases, nutrients can diffuse out of the gut to body cells.
4
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Describe the five trends that mark human evolution. Explain the significance of each. What will be an ideal response?
In a two-point test-cross analysis, what are the "two points" being tested?
What will be an ideal response?
Which of the following electron carriers transfers both protons and electrons?
A) cytochrome a B) cytochrome b C) coenzyme Q D) iron-sulfur proteins E) iron-copper proteins
The duck-billed platypus and other monotremes differ from other mammals in that they
A) are aquatic. B) lay eggs. C) have mammary glands. D) have hair.