Answer:
Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can't push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.
Explanation:
Answer:
This statement is true
Explanation:
While this question can appear incomplete, the claim stated is in fact true. There are many people who are deciding that they do not want to vaccinate their children, and this can be bad for herd immunity.
What herd immunity is, is that if 90% of kids in a population are vaccinated (cannot transmit the disease), and they are all spread out, statistically speaking, there is very little chance of that 10% of kids meeting each other.
<span>During an earthquake, it is important to seek protection from windows and hanging objects. These objects could fall at any moment during an earthquake, which could result in harm to people nearby. Ultimately, the most important things are to drop to the ground, cover your body, and hold on to stable objects.</span>
D Type. He is changing the type of activity he is doing for his bike-riding routine.
