Which of the following statements about euglenoids is false?
a. They are much more common in fresh water than marine environments.
b. Most are photosynthetic.
c. Their cell body is surrounded by a pellicle.
d. Some absorb nutrients from their environment in a heterotrophic manner.
e. They move by pseudopodia.
E
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The formation of polyploids in plants is an example of which model of cladogenesis?
A. Parapatric speciation B. Allopatric speciation C. Sympatric speciation
What stimulates the production of adrenocorticotropic hormone (ACTH)?
A. GHRH B. CRH C. CIH D. ADH
Fats have _________ calories per gram, while carbohydrates and protiens both have __________ calories per gram.
A. 9.3;4.1 B. 4.1;9.3 C.10;5 D.17.6;6.5
Stanley Miller's experiment was concerned with the idea that
A. life originated in outer space. B. life originated by biogenesis. C. life originated by spontaneous generation, but biogenesis followed. D. organic molecules could be formed from gases in the early atmosphere.