Which of these is an often abundant plankton organism in the North Sea?
a. Radiolarians
b. Shrimp
c. Coccolithophores
d. Dinoflagellates
e. Ocean sunfish (Mola mola)
C
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An anthropologist discovers the fossilized heart of an extinct animal
The evidence indicates that the organism's heart was large, was well-formed, and had four chambers, with no connection between the right and left sides. A reasonable conclusion supported by these observations is that the _____. A) animal had evolved from birds B) animal was endothermic and had a high metabolic rate C) animal was most closely related to alligators and crocodiles D) animal was likely an invertebrate animal E) species had little to no need to regulate blood pressure
The buccal cavity is another name for the:
A. mouth. B. stomach. C. rectum. D. small intestine. E. anus.
Which of the following statements is false?
a. There are more than 1,000 chromosomes found in some organisms. b. The more highly evolved a species is, the more chromosomes it possesses. c., The number of chromosomes remains constant throughout a life cycle. d. The number of chromosomes is the same for all members of a species. e. There are half as many chromosomes in germ cells as there are in somatic cells
What type of amino acids will be present where integral proteins attach to cell membranes?
What will be an ideal response?