Answer:
I think the 1 & 2 is a but idrk the rest
sugars and amino acids are made of the same elements except amino acids also cointan nitrogen.
It changes because of the movement of the concentration of students who breathe out CO2
Answer:
A. Mammal
Explanation:
We are a mammal because we have hair, we produce milk, give birth to live offspring (kids), and we are warm blooded.
Phospholipids have 2 faces or poles: one hydrophobic (the tails which "run away" from water) and one hydrophilic (the heads which "like" water).
This means that when in a double layer in a aqueous environment, the heads will face the water and the tails will face each other.
