Grass and fruit trees are not living organisms. true or false

What type of rock can be found in river beds?

What are two structures that are found in plant cells that are not found in animal cells

What type of tissue comprises the bulk of the myocardium

When a natural events such as hurricanes or earthquake separate a population this is called

Explain how Darwin would have explained the many different variations of guppies.

Which type of selection tends to increase genetic variation?

Nature selects traits that make a species more successful in its environment. true or false

Which type of stem cell is described below? stem cells are available from a variety of sources, including blood from an umbilical cord, or cells in the placenta, the bone marrow, and even human fat.

What does elements do carbohydrates contain

How many cell divisions would it take to produce at least 1,000 cells from one cell? (When one cell splits in half during cell division, the result is two new cells. Each of those cells can divide into two more and so on.) Answer (256?)