How can chain reactions be controlled during nuclear fission reactions?

What form of anesthetic was used for field surgery

Imagine that you are a doctor in a maternity ward. during your last shift, 20 babies were born. 10 had blue eyes, and 10 had brown eyes. 15 had round heads, and 5 had pointed heads. what are the parents phenotypes/traits?

Fish eggs are a source of food for many ocean animals. which of the following are fish most likely to do to ensure that some eggs survive long enough to hatch? a. they lay one egg each season. b. they stop laying eggs. c. they start laying larger eggs. d. they lay hundreds of eggs.