A critical period (2 points) a
begins and ends abruptly

b
begins and ends gradually

c
is unaffected by stimuli

d
is unlikely to impact development

How might expectations or rules at a job differ from those at your home?

The consists of a mixture of gases and particles, including oxygen, nitrogen, hydrogen, carbon dioxide, water vapor, and dust.

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive