Check all that occur at the cellular level as a result of aging
What will be an ideal response?
_____ Cells experience increased metabolic functions.
__X__ Cells experience a decreased ability to maintain homeostasis.
__X__ The process of cell division becomes faulty, resulting in a greater risk for cancer.
_____
The risk for unsuccessful completion of sex cell division and maturation decreases.
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Renin is released by the ________.
A. liver B. lungs C. spleen D. kidney E. pancreas
Germ layers form during the ________ period, while organ systems mature during the ________ period.
A. fetal; germinal B. embryonic; fetal C. prenatal; neonatal D. germinal; fetal E. germinal; embryonic
The serous fluid that helps in cardiac function is located
A. between the visceral pericardium and the cardiac muscle. B. inside the heart's chambers. C. between the parietal pericardium and the sternum. D. in the pericardial cavity, between the parietal and visceral pericardial layers.
When a hormone binds to a membrane–bound receptor,
A. membrane channels are destroyed. B. cyclic GMP might be produced to act as an intracellular mediator. C. the nucleus is phosphorylated to prevent G-protein activation. D. messenger RNA is formed. E. cellular DNA is altered.