Which statement is true of the female gametophyte of pine?

(a) It’s a product of repeated cell divisions of the functional megaspore.
(b) It’s haploid.
(c) It serves as the stored food to be used by the embryo sporophyte upon germination.
(d) All of the above are true.


(d) All of the above are true.

Biology & Microbiology

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Which of the following will not increase the rate of transpiration in plants?

A. high humidity B. low humidity C. high wind speeds D. high temperature E. All of the answer choices are correct.

Biology & Microbiology

Nitrogen is a major bioelement that can be found in:

a. proteins b. Nucleic acids c. Polysaccharides d. Lipids A. A and B B. A, B and C C. B and C D. A, B, C, and D

Biology & Microbiology

Based on his experiences while aboard the H.M.S. Beagle, Darwin realized that ____ provided the only plausible

explanation for his observations.

a. descent with modification b. a metaphysical perfecting principle c. the principle of use and disuse d. catastrophes in ancient environments e. inheritance of acquired characteristics

Biology & Microbiology

What characteristic can be used to differentiate between bone and cartilage?

A. the presence of fibers in the matrix B. the presence or absence of cells C. the flexibility of the matrix D. whether the tissue is fibrous or specialized connective E. whether the matrix is solid or liquid

Biology & Microbiology