About 70% of our planet is covered by oceans. Compared to the depth of the solid portion of Earth, the water on Earth forms a

A) much thinner layer.
B) much thicker layer.
C) layer about twice as deep.
D) layer with a similar depth.

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.

What materials must dams have to produce electricity, and what must occur?