Which of the following features is most important for true mosses and ferns to reproduce in the desert?
A) that the sporophytes occupy only permanently shady, north-facing habitats
B) that the sporophytes hug the ground, growing no taller than a couple of inches
C) either that their gametophytes grow close together, or that they be hermaphroditic
D) that the sporophytes have highly lignified vascular tissues
E) that the gametophytes contain secondary compounds to deter herbivores
Answer: C
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If all members of a population have the identical DNA sequence at a given site, that site is said to be _______
A. Monomorphic B. Polymorphic C. Trimorphic
Qx =
A) nx/dx. B) nx/lx. C) dx/nx. D) Tx/nx.
How many ATP molecules could be made through substrate-level phosphorylation plus oxidative phosphorylation (chemiosmosis) if you started with three molecules of succinyl CoA and ended with oxaloacetate?
A) 6 B) 12 C) 18 D) 24 E) 36
Brown eye color requires (Select all that apply):
a. genes for the enzymes that synthesize the pigment melanin. b. phenylalanine, form which melanin is made. c. one dominant allele and two recessive alleles.