Answer:
<h2>
Calcium ions</h2>
Explanation:
The actin and myosin are the myofilaments which are involved in the contraction and relaxation of the muscle. The actin is thin filaments and contains the attachment site for the myosin but the site is blocked by the tropomyosin and troponin proteins.
When calcium ions present in the muscle binds to the troponin molecules, it changes the conformation of the tropomyosin. This change exposes the attachment site of the myosin and then the myosin binds the troponin and causes Powerstroke and leads to contraction of a muscle.
Thus, Calcium ions is correct.
Answer:
Nevirapine can cause serious, life-threatening side effects. These include severe liver problems, skin rash, and skin reactions. Liver and skin problems can happen at any time during treatment with nevirapine.
Explanation:
Answer:
The roots suck up the water in the ground. Then transfer it to the plant.
Explanation:
Answer:
1. Chameleon
2. Golden Tortoise Beetle
3.Mimic Octopus
4. Pacific Tree Frog
5. Seahorses
hope it helps (^^)
# Cary on learning
The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
Mold fossils
Cast fossils
Trace fossils
