Which kingdom possesses unicellular animal-like species and unicellular plantlike species?
A) Animalia
B) Protista
C) Fungi
D) Plantae
Ans: B) Protista
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What is the key concept addressed by the question?
What will be an ideal response?
Which of the following is NOT true about sponges?
a. They have few predators or pathogens. b. Some groups have sharp spicules of silica or calcium carbonate. c. Some species secrete a slimy body coating. d. They can harvest sea anemone nematocysts and use them for their own defense. e. Disease and overharvesting have caused population declines.
The maximum possible rate of increase is a species’
__________ potential. Fill in the blank(s) with the appropriate word(s).
Which of these describes antagonistic pleiotropy?
A. The later in life that a mutation affects fitness, the weaker the selection against that mutation. B. Mating only once in life, then dying. C. Genes that increase reproduction may decrease survival later in life. D. Delaying reproduction until conditions are more favorable. E. Cellular damage that lowers survival and reproduction with age.