Lateral roots are the product of the
a. pericycle.
b. vascular cylinder.
c. epidermis.
d. apical meristem.
e. endodermis.
Answer: a
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The phase of the cell cycle associated with the doubling of the amount of DNA in the cell is
A) G0. B) G1. C) G2. D) M. E) S.
In decomposition, fungi generally
A) extend hyphae to invade litter and excrete hypha. B) break down litter through shredding. C) consume microbivores on tissues. D) gain energy directly through photosynthesis.
During intense exercise, the metabolic activity of muscle causes ________ in the partial pressure of oxygen in the tissue, ________ the movement of oxygen into the tissue.
A) a decrease : facilitating B) a decrease : reducing C) no change : facilitating D) an increase : reducing E) an increase : facilitating
The primary ecological function of fungi is that of ________.
A. decomposer B. consumer C. pathogen D. producer