Which of the following substances can easily diffuse across the lipid bilayer of the cell membrane? (Circle ALL that apply.)
Answer:
a. H20
b. K+
c. O2
d. CO2
e. hydrocarbons
f. glucose
g. ATP
C,D,E*
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Which of the following are characteristics of self-compatible plants?
A. They are physically isolated. B. Their pollinators are common. C. They are wind pollinated. D. Carpels and stamens are on separate plants.
Changes in technology change the economic geography of a region
Indicate whether this statement is true or false.
Which of the following is an example of interference competition? a. Deer and blue jays eating acorns
b. Bluegill and catfish both eat worms. c. Maggots decomposing a rotting apple before the bacteria can decompose it. d. Hyenas chasing a lion away from the zebra carcass. e. A dove nesting in a pine tree while a blue jay nests in an oak tree.
If the allele for inflated pea pods (I) is dominant to the allele for constricted pods (i), then the cross Ii xii is expected to produce
A) 3/4 with constricted and 1/4 with inflated pods. B) all peas with inflated pods. C) 3/4 with inflated and 1/4 with constricted pods. D) half with inflated and half with constricted pods. E) all peas with constricted pods.