Cytoplasm,is it cell orangans? If so cytoplasm
Answer:
its option A. bright tail feathers of peacocks during breeding season
Explanation:
What percent of potassium-40 remains undecayed in a rock that is 3.9 billion years old? The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.
Answer to this question is b
Prenatal care as well as preconception can help prevent complications and inform women about important steps they can take to protect their infant and ensure a healthy pregnancy.
