_______ ________ 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

Biology & Microbiology

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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

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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

Biology & Microbiology

Crossing over occurs during

a. anaphase I. b. metaphase II. c. prophase I. d. prophase II. e. telophase II.

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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

Biology & Microbiology