Check all of the major hypotheses of aging.

A. Damage to mitochondria
B. Presence of a "cell death clock"
C. Damage to lysosomes
D. Damage to the DNA from free radicals
E. Presence of "death genes"


Ans:
A. Damage to mitochondria
B. Presence of a "cell death clock"
D. Damage to the DNA from free radicals
E. Presence of "death genes"

Anatomy & Physiology

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You cannot tell when your small intestines shift position as food enters because you do not have any ________ there

A) chemoreceptors B) nociceptors C) proprioceptors D) thermoreceptors E) photoreceptors

Anatomy & Physiology

Sperm move to the uterine tube through uterine contractions and the energy of their own flagella. What other factor is involved in sperm movement?

A) reverse peristalsis of the uterus and uterine tubes B) the cilia on the apex of the cells lining the endometrium C) hormonal attraction to the ova D) the increased temperature in the vagina, which stimulates sperm motility

Anatomy & Physiology

Mucous connective tissue is found only in

A. the umbilical cord. B. certain bones of the skull. C. serous fluid. D. the cartilage of the nose. E. fibers of the respiratory system.

Anatomy & Physiology

Which of the following contains only Y chromosome?

a. A sperm b. A body cell in female c. A body cell in male

Anatomy & Physiology