How are scientist able to compare DNA from bones or teeth to that found in hairs on a hair brush?

What is the scientific method? is there just one universal scientific method? why or why not?

What general type of microscope uses bright illumination and multiple glass lenses?

What kind of relationship would a sea anemone and a clown fish have?

I studied very hard for my bio final but the question where very hard and I didn't understand anything. I cried after the test. The teacher just put our grades in and I got a 99%. ON THE FINAL. what?

Before continuing, think about and answer this question: In deducing the evolutionary relationships among dogs, do you think it would be better to use a sequence that is neutral, or one that is under selection? Explain your answer.

Joel always atends the dentists and all his physicians regularly this is a important part of negative peer preasure positive ^ spreading disease disease prevention

Which selection is a characteristic of both living and non-living things? A) They both use and obtain energy. B) The same atoms and subatomic particles can be found in both. C) They are both made of cells. D) They both have a metabolism.

A moss-covered log is overturned by a hungry bear looking for insects to eat. The bear disturbs an ant colony, and some chipmunks leave the hollow log to search for another home in the forest.

1. What is the word for a type of communication that goes from cell to cell 2. What is the word that means "within the cell," such as referring to signals moving from one place to another within the cell? 3.

How is the earth like a closed system? A. Matter but not energy moves through the system B. Matter does not move in and out of the system but energy does C. Matter and energy does not move through a system D.