When does pregnancy start?
a. at fertilization
b. when a zygote forms
c. at gestation
d. when the zygote implants in the uterus
D
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In a conjugated protein, a prosthetic group is:
A) a fibrous region of a globular protein. B) a nonidentical subunit of a protein with many identical subunits. C) a part of the protein that is not composed of amino acids. D) a subunit of an oligomeric protein. E) synonymous with "protomer."
A fern is an example of what type of plant?
a) seedless vascular b) flowering plant c) nonvascular d) naked seed plant
What is the probability of having 4 girls in a row?
a. 1 in 2 b. 1 in 4 c. 1 in 8 d. 1 in 16
Mot-mots are snake-eating birds of the American tropics. If a mot-mot killed and consumed a rattlesnake and that snake fed upon grain-eating rodents, then how many kilograms of grain would normally be required to end up with 1 kg of mot-mot?
A) 1000 B) 10,000 C) 10 D) 100