Implantation of the embryo occurs in the
a. ovary.
b. uterus.
c. vagina.
d. oviduct.
e. follicle.
B
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Methanogenesis is coupled with proton motive force formation and ATP synthesis through the activity of ATPases
Indicate whether the statement is true or false.
Discuss the importance of twin and adoption studies to human behavioral genetics research
What will be an ideal response?
Each of the following statements accurately describes a feature of arteries EXCEPT which one?
A) Arteries have an endothelial lining that reduces friction and promotes smooth blood flow. B) Arteries have a smooth muscle layer on the outside, which provides some stiffness. C) Elastin fibers in arterial walls allow stretching of the arteries. D) Valves along major arteries maintain directed blood flow. E) A tough supportive layer of connective tissue containing collagen is found on the outer surface of arteries.
A filamentous organelle comprised of tubulins with a diameter of 25 nm is called ________.
A. microtubule B. microfilament C. intermediate filament D. mycelia