Well the niche of a squirrel mostly depends on the niche of a temperate rainforest.The trees need water and sunlight to make a nut.Then the squirrel finds the nut and stores it for the winter
Lipids are NOT made of nucleotides. Nucleotides are the building block for nucleic acid, if that answers your question.
Polar and Ionic compounds
Answer:
The head got bigger and the face got smaller. Hope his helps.
Ok, think about it. Does your skin prevent germs from getting inside you?
Does your skin prevent water from leaving the body too quickly? Does your skin protect your insides from getting damaged when you fall? Do you put food on your skin to absorb nutrients, or do you put food in your mouth like a normal person?