Answer:
D
Explanation:
because the stars dont move the earth does
Answer:
the one the already have clicked
Answer: Mowing increases the likelihood of nonnative species displacing native species.
Explanation:
Answer:
if the baby is still small you have to take a pill or when the baby is a little big they have to do a procedure.
Explanation:
1. Contraction
2. Actin
3. Tendons
4. Epidermis
5. Dermis
6. Acne
7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.
For Penn Foster.
