Answer:
Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object. The dark area is called a shadow
It is always necessary to analyze research for bias
Answer:
I believe the correct answer is homeostasis. When your blood sugar is too high, your pancreas secretes insulin. When your blood sugar is too low, your pancreas secretes glucagon to regulate it.
Answer: when their is a new moon
Explanation:
The biceps and triceps muscles work together to allow you to bend and straighten your elbow. When you want to bend your elbow, your biceps muscle contracts (Figure below), and, at the same time, the triceps muscle relaxes. The biceps is the flexor, and the triceps is the extensor of your elbow joint.
