_______ ________ is the process whereby organisms not closely related, independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.
Fill in the blank(s) with the appropriate word(s).
Ans: Convergent evolution
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The chemoreceptors called papillae are ________
a. ciliated endings of olfactory receptors b. touch receptors located on the skin c. taste buds on the tongue d. specialized for detecting pheromones
Elephants can live for between 50 and 70 years
and a cow (female elephant) typically gives birth to 3 or 4 calves. What type of survivorship curve applies to them?
a. type I b. type II c. type III d. none of these types e. more than one of these types
Crossing over occurs during
a. anaphase I. b. metaphase II. c. prophase I. d. prophase II. e. telophase II.
Which of these structures is analogous in function to the alveoli of humans?
A) Parabronchi of a bird B) Spiracles of a grasshopper C) Trachea of a frog D) Operculum of a fish E) Skin of an alligator