Which term describes a set of organisms that descended from a single common ancestor and are more closely related to other members of the group than to organisms outside the group?
A) paraphyletic group
B) phylogeny
C) species
D) monophyletic group
E) parsimony
D
Biology & Microbiology
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Describe what occurs when elemental sulfur is provided externally as an electron donor and how energy is obtained
What will be an ideal response?
Biology & Microbiology
In limb-positioning in tetrapods, the _______ acts as an organizer to promote digit formation at the distal ends of limb buds
Fill in the blank(s) with correct word
Biology & Microbiology
Catalyzes the formation of cytosolic second-messenger molecules
a. Adenylate cyclase b. G-protein c. Carrier protein d. cAMP e. Ion channel receptor protein
Biology & Microbiology
The hormone that controls the milk letdown reflex is:
A) estrogen B) luteinizing hormone C) oxytocin D) follicle-stimulating hormone
Biology & Microbiology