If a man who has Duchenne muscular dystrophy has kids with a woman who does not have or carry the allele, how many of their sons could have the disorder?

A. None

B. All

Organism that use light energy to build molecules are called

What provides an explanation for the presence of mitochondria and chloroplasts in present day cells?

During the winter, many species of amphibians and reptiles go into a hibernation-like state called overwintering. They eat little or no food, slow their metabolism and breathing rate dramatically, and most of their bodily functions shut down.

Why can't the producers in some ecosystems make an unlimited supply of organic material

Does the price per bushel always increase with demand

Which process allows a mammal to continue to grow in size

A what is a scientific instrument used to sense and record movements in Earth's Lithosphere?

Which process releases energy instead of using energy?

In what way is the treaty on plant genetic resources limited? A. It neglects the loss of biodiversity B. It excludes the use of seed banks C. It excludes countries other than the United States. D. It neglects the loss of habitat

What is the difference between a trait and a characteristic