Water enters the spongocoel through the osculum
Indicate whether the statement is true or false
F
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Trace elements
A. include zinc, copper, and manganese. B. are required in large amounts. C. may be needed for enzyme function. D. are involved in maintaining pH in the cell. E. include zinc, copper, and manganese AND may be needed for enzyme function.
Which of the following best explains why a particular atom may not form compounds easily?
A) The atom has an uneven number of protons. B) The atom's outer energy shells are completely full. C) The atom has seven electrons in its outer shell. D) The atom has no electrons.
Four of the following statements are true of predator-prey coevolution. Which one is FALSE?
A. Each species exerts selection pressure on the other. B. Predators are selective agents that favor improved prey defenses. C. Prey with better defenses are selective agents that favor better predator hunting skills. D. Coevolution only occurs in animals and is usually seen after one reproductive generation. E. Camouflage, warning coloration, and mimicry are all examples of coevolution tactics.
What level of taxonomy is Parameciidae Cells rotate while swimming and have oral grooves?
What will be an ideal response?