Skeletal muscle exhibits alternating light and dark bands called a sarcomere
Answer: B
Explanation: Most mammals have only one pair of sex chromosomes in each cell. Males have only one Y chromosome and one X chromosome, while females have two X chromosomes. In Mammals, the Y chromosome contains a gene, SRY, which triggers embryonic development in a male.
Hope this helps!
Answer: Earth spins on its axis
hope this helps (:
Answer:
It is A
Explanation:
It is the only one that makes sense
Hope this helps
A vaccine uses a live pathogen that is too weak to make you sick. Once it enters your body you defeat it easily. Now that yur body is familiar with it your body can fight off the disease in the future.
