Answer:
brothers and sisters don't look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.
Answer:
Water vapor
Explanation:
Clouds are formed when water evaporates into water vapor.
The endocrine system.
This system includes the pituitary gland, thyroid gland, parathyroid gland, adrenal glands, tested/ovaries, and the pancreas.
Answer:
vAccording to one data set, the average American has has an ecological footprint over four times larger than the global average.
