In order to be called a primitive cell, the entity would have to
A. control chemical reactions.
B. have genetic material.
C. use a source of energy from its surroundings.
D. All of these answers are true.
D. All of these answers are true.
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When antibodies bind antigens, the clumping of antigens results from _____
A) the antibody having at least two binding regions B) disulfide bridges between the antigens C) a complement that makes the affected cells sticky D) bonds between class I and class II MHC molecules E) denaturation of the antibodies
The amoebozoa use what structures for movement and feeding?
A) threadlike pseudopodia B) cilia C) flagella D) lobe-shaped pseudopodia
As pertaining to the spread of antibiotic resistance in bacteria, which of the following terms is not directly related to the others?
A. Intercalate B. Integron C. Integrase D. Cassette
Answer the following questions in reference to the four groups of fungi listed below.
A. The common black bread mold is a member of this group. B. The yeast used in the fermentation of grape juice to produce the wines of the world is a member of this group. C. The delicious, highly-prized truffle is a member of this group. D. Puffballs and stinkhorns are members of this group. E. Members of this group form mycorrhizae with plant roots.