Carbon, nitrogen, oxygen, hydrogen
I’m not fr sure lol you in high school? Cause I am and I’m a senior and I don’t even know this
Answer:
ATP
Explanation:
Active transport always requires energy (ATP)
Answer:
There are two main types of chemical bonds that hold atoms together: covalent and ionic/electrovalent bonds. Atoms that share electrons in a chemical bond have covalent bonds. An oxygen molecule (O2) is a good example of a molecule with a covalent bond.
Explanation: