Tightly wound strands of dna that are found in the nucleus are called

(hint: it looks like an x)

inherited

traits

x-men

chromosomes

How does the human body lever work?

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

On his trip to the galapagos islands, darwin determined that animals on the islands