Chapter 13 Flashcards
1
Q
Endocrine system
A
System of glands of an organism that secrete hormones directly into the circulatory system to be carried towards distant target organs
2
Q
Adolescent growth spurt
A
The period during adolescence when well-nourished teens typically increase in stature at greater rates than at other times in the life cycle.
3
Q
Essential amino acids
A
The 9 (of 22) amino acids that must be obtained from the food we eat because they are not synthesized in the body in sufficient amounts.
4
Q
Senescence
A
Decline in physiological functioning usually associated with aging.
7
Q
Pleiotropic genes
A
Genes that have more than one effect; genes that have different effects at different times in the life cycle.
