What are interactions species living in the same area called? question 6 options: population density a niche a community biotic potential endemic?

What type of lipids are found in all biological membranes?

As a small change in a person's dna can cause a genetic disorder

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.