Gases enter and leave a mammal's body by diffusing across a:
a. membrane made up of multiple cell layers
b. hard exoskeleton
c. thin, moist membrane
d. set of gills
e. protective layer of thick cells
c
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Extensive irrigation may contribute to global climate change because it may cause droughts in some semi-arid regions of the world.
a. true b. false
The first detailed and quantitative studies on inheritance were carried out by an Austrian monk named ________.
A. Darwin B. Mendel C. Mendeleev D. Benedict
A plant's diploid form is called the ________; the haploid form is called the ________
A) sporophyte... pollen B) sporophyte... gametophyte C) gametophyte... sporophyte D) gametophyte... fruit
Derived character states shared by clade members are called
A. symplesiomorphies. B. ancestral traits. C. homoplasies. D. plesiomorphies. E. synapomorphies.