The answer is the first one ( True )
Answer:
One easy way to measure the "size" of a ball is how far it is from side to side. Your tennis ball example is a good one: a typical tennis ball is about 2.5 inches form side to side.
A. magnetic if its wrong let me know
Homeostasis is the ability to maintain constant internal conditions when outside conditions change.
For example, when temperatures in the body fall below 37° C, the nervous system signals the muscular system to
cause the body to shiver. When you shiver, your muscles move. Tiny muscles attached to hairs on the skin contract and pull the hairs up straight, forming goose bumps. This movement generates thermal energy and helps raise body
temperature. Keeping the body’s temperature constant requires that the endocrine system, the nervous system, and the muscular system work together.
If you were studying climate change in general. The answer would be the last one which is ecosystem because it’s the study of the environment
