The stramenopiles are an extremely diverse group of organisms which would appear to have very little in common with one another. The one unifying feature in this group is the presence of ________ at some point in the life cycle.
Fill in the blank(s) with the appropriate word(s).
heterokont flagella
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Which of the following is an example of a density-independent regulation?
a. parasites b. waste accumulation c. hurricanes d. predation
A transposon may carry genes for proteins that enable their transposition as well as genes for other functions such as drug resistance
Indicate whether the statement is true or false
Consider the aquatic insects pictured in the accompanying figure. Which characteristic of water molecules directly
contributes to their remarkable "water walking" success?
a. ionic bonds
b. capillary action
c. hydrogen bonds
d. adhesive forces
e. nonpolar covalent bonds
You discover a new species of plant in a tropical rain forest. You observe that it has flagellated sperm and the sporophyte emerges from the gametophyte; however, seeds and xylem tissue is lacking. This plant is probably a(n)
A) gymnosperm. B) fern. C) bryophyte. D) alga. E) angiosperm.