Biology revision

1. People who have a single recessive allele for a genetic disease.
3. The preserved remains of dead animals.
6. The theory that all life was made by God and they have remained the same since.
7. The process of plants making their own food.
10. Oxygen is taken into cells by the process of...
11. Where gas exchange occurs
13. Controls the passage of substances in and out if the cell.

2. The permanent loss of all members of species from the face of the earth.
4. Thread-like structure carrying the genetic information found in the nucleus of a cell.
5. Who's theory was "the survival of the fittest?"
8. The optimum temperature that enzymes work at.(Write in letters)
9. What cells are the most versatile in the use of Stem Cell research.
12. A short section of DNA carrying genetic information.