<span>The atomic number of a neutral atom is equal to
the number of protons and the number of electrons of the atom. The atomic
weight meanwhile is equal to the sum of the number of protons and number of
neutrons. We add therefore the number of protons and number of neutrons </span>
The prefix “hydro-“ relates to water
B. To orient themselves and to find food
Since they cannot see very well or even at all in some cases, these animals use echolocation instead to orient themselves, to find where they are, and to find food.
Answer:
True
Explanation:
energy can be caused by the sun and water and wire and battery.
D. Mitochondria and Chloroplast
i'm sorry if it's wrong but that should be the right answer