The ____ houses the blood vessels that join the embryo and its mother.
a. umbilical cord
b. amnion
c. germ disc
d. mesoderm
Question 2
Which best describes the paternal investment theory of puberty?
a. Moms have the greatest impact on the timing of early puberty, and having a highly involved mom appears to delay its onset.
b. Moms have the greatest impact on the timing of early puberty, and having a highly involved mom appears to accelerate its onset.
c. Dads have the greatest impact on the timing of early puberty, and having a highly involved dad appears to delay its onset.
d. Dads have the greatest impact on the timing of early puberty, and having a highly involved dad appears to accelerate its onset.
Strawberry hemangioma, a birthmark caused by a collection of blood vessels in the skin.
Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t
Spinal cord.
Insulin, glucagon, and blood glucose
Anemic Red Blood Cells
Cross-section of the spinal cord