The initial carrying capacity of an environment
is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
C
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In a search for new antibiotics, a previously unknown organism has been recovered from the soil. It is nonmotile and is composed of long threadlike structures formed from nucleated cells. It is not-photosynthetic and absorbs its nutrients. This organism will most likely be classified among the
A. Eukaryotes (Fungi) B. Archaea C. Eukaryotes (Algae) D. Eukaryotes (Protozoa) E. Bacteria
Chromosomes are copied during what stage of the cell cycle?
a. M b. D c. G1 d. G2 e. S
If oxygen had been present at the beginning of organic evolution, one hypothesis suggests that
A. evolution would have been speeded up. B. evolution would have been speeded up only for plants. C. no change would be noted. D. life would not have evolved.
Assuming that an amino acid sequence is 250 amino acids long, how many different molecules, each with a unique sequence, could be formed?
What will be an ideal response?