The number of individuals of the same species

in some specified area or volume of habitat is
the



a. population density.
b. population growth.
c. population birth rate.
d. population size.
e. carrying capacity


A

Biology & Microbiology

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The water lost during transpiration is a side effect of the plant's exchange of gases. However, the plant derives some benefit from this water loss in the form of _____

A) increased turgor and increased growth B) mineral transport and increased growth C) evaporative cooling and increased turgor D) evaporative cooling and mineral transport

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Exocrine glands secrete all of the following EXCEPT ____

a. mucus b. hormones c. earwax d. milk e. digestive enzymes

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Internal fertilization is more advantageous than external fertilization because:a

internal fertilization permits cross-species fertilization.

b. internal fertilization is more open to chance. c. internal fertilization produces a motile egg. d. internal fertilization increases the life span of gametes. e. internal fertilization provides a protective environment for gamete fusion.

Biology & Microbiology

Which of the following describes the mechanism by which a plant stem grows toward light?

A. The plant seeks light in order to maximize photosynthesis B. nerve like impulses stimulate contractile cells on the lighted side of the stem C. cells on the dark side of he stem elongate more than those on the lighted side D. THe plant grows into an open area where its leaves will not be shaded by competing plants E. the greater energy supply on the lighted side of the stem stimulates metabolism and growth on that side

Biology & Microbiology