Answer:
A covalent bond.
Explanation:
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.
Answer:
active transport
Explanation:
it involves movement of ions
Answer:
exonuclease
Explanation:
According to Oxford Languages, exonuclease is:
an enzyme which removes successive nucleotides from the end of a polynucleotide molecule.
When a meteoroid passes through earth's atmosphere, it heats up due to air resistance. The heat causes gases around the meteoroid to glow. most meteoroids that enter earths atmosphere disintegrate before they hit the ground.