Fungi digest organic matter
a. by using bacterial endosymbionts.
b. with extracellular enzymes.
c. in their fruiting bodies.
d. inside the hyphal cells, after phagocytosis.
e. by using hydrolytic enzymes of their host cells.
B; Fungi are heterotrophic and must take in organic matter in order to live. They cannot use phagocytosis (choice d), because the cell wall prevents uptake. They manufacture their own digestive enzymes (choices a and e), and excrete them, absorbing the breakdown products. This is done by the hyphae in the mycelium of the host or in the soil, not in the fruiting body (choice c).
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A) purple sulfur bacteria and dissimilative sulfur-reducers B) dissimilative sulfur-reducers and dissimilative sulfur-oxidizers C) nitrogen-fixing cyanobacteria and fungi D) nitrogen-fixing cyanobacteria and dissimilative sulfate-reducers
One part of Darwin's theory is that individuals
with certain traits have an increased competitive edge. The source of these traits is a. adaptation to stress. b. development over a lifetime. c. inheritance. d. mutation after birth. e. all of these.
A woman who is color blind, a sex-linked trait, has several children with a man who has normal vision. What are the possible phenotypes of their children with respect to this trait?
What will be an ideal response?
Small structure in a cell that performs a specific function is the ___________.
Fill in the blank(s) with the appropriate word(s).