Both male and female gonads function to:
1) produce gametes.
2) produce hormones.
3) transfer gametes.
4) nourish the embryo.
5) influence secondary sexual characteristics.
a. answers 1 and 2
b. answers 2 and 4
c. answers 3, 4, and 5
d. answers 1, 2, and 5
e. answers 1, 2, 3, 4, and 5
d
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Looking at the data in the figure above, what can be said about survival and clutch size?
A) Animals with low survival tend to have smaller clutch sizes. B) Large clutch size correlates with low survival. C) Animals with high survival tend to have larger clutch sizes. D) Probability of survivorship does not correlate with clutch size.
The cells of connective tissue are held close together by strong cell-to-cell attachments.
a. true b. false
Moss sperm are transported to the archegonia by:
a. wind. b. water. c. hummingbirds. d. insects. e. both insects and water
Which is incorrect about deuterostomes?
A. The blastopore becomes the animal's anus. B. The archenteron outpockets to form coelom. C. The commitment of embryonic cells to prescribed developmental pathways occurs later than in protostomes. D. Embryonic cells cleave in a spiral pattern. E. They are derived from the protostomes.