All of the petals of a flower are collectively called the

a. corolla.
b. stamens.
c. receptacles.
d. calyx.


d

Biology & Microbiology

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Chromosomes are copied during what stage of the cell cycle?

a. M b. D c. G1 d. G2 e. S

Biology & Microbiology

-laying mammals

a. hatch fully developed young from their eggs. b. are monotremes. c. are hairless. d. are confined to South America. e. bear their young into permanent pouches.

Biology & Microbiology

A person with this lung disease experiences a loss of elastic tissue, which makes it hard to exhale

A) pneumonia B) tuberculosis C) emphysema D) influenza

Biology & Microbiology

The type of anemia that results from a deficiency of vitamin B12 is ________; the type of anemia that results from extreme blood loss is ________

Fill in the blank(s) with correct word

Biology & Microbiology