That the nutrients must be supplied in the diet and cannot be made in the body.
Answer:
Biologists study the structure, function, growth, origin, evolution and distribution of living organisms.
Explanation:
Use hand sanitizer to remove germs it’s most efficient
Answer:
A narrow-edged tooth at the front of the mouth, adapted for cutting. In humans there are four incisors in each jaw.
Learning something new causes thebrain to build connections between neurons, replacing some of those we lose over time.