Deserts typically form at ____ latitude where
____.
a. 30 degrees; warm dry air descends
b. 60 degrees; warm dry air descends
c. 0 degrees; there is intense sunlight
d. 60 degrees; warm dry air ascends
e. 75 degrees; rising air picks up moisture
A
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Which of the following is NOT true of
protists?
a. They may reproduce sexually. b. Most have mitochondria. c. Some reproduce asexually by binary fission. d. Most protists are unicellular organisms, but some are multi-celled species. e. Some protists are photoautotrophs
Four of the five answers listed below are
features found in sponges. Select the EXCEPTION.
a. mesoderm b. collar cells c. larvae d. spicule e. amoeboid cells
If you were to penetrate through the epidermal
layer of a root, you would next encounter the a. xylem. b. endodermis. c. cortex. d. phloem. e. pericycle
Which of the following statements about the human genome is false?
(a) About 50% of the human genome is made up of mobile genetic elements. (b) More of the human genome comprises intron sequences than exon sequences. (c) About 1.5% of the human genome codes for exons. (d) Only the exons are conserved between the genomes of humans and other mammals.