Some reasons:
→ They're cheap and common animals.
→ They can be either a source of meat, skin (leather) or milk.
→ Farmers benefit a lot with them, since what they produce are things of everyday consumption.
→ You don't need to spend much to be able to have them (mostly only with land).
Hope it helped,
BioTeacher101
Liters because liters are larger than milliliters.
I’m pretty sure it’s water, oxygen, and food. beacuse food provided both nutrients and an energy source.
8. Yes it's an organic molecule because it contains nitrogen and oxygen, among other elements needed for a molecule to be labeled as organic.