Which of the following is a definition of motion?
a. a change in position over time
b. a location compared to other locations
c. the length of the path between points
d. the speed and direction of an object

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.

What are the pros and cons of quadrat sampling?

This is the interaction of two organisms where one is and the other is neither nor harmed.