biology vocabulary

2. two different alleles
3. the product of reproduction, a new organism produced by one or more parents.
5. individual entity
7. respiration, set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy
8. stage in the cell cycle where all the genetic material is condensing into chromosomes
10. system, a complex network of cells and proteins that defends the body against infection.
14. selection, the process through which populations of living organisms adapt and change
15. acid, molecule composed of two polynucleotide chains
17. membrane-bound
19. selection, process whereby organisms better adapted to their environment tend to survive and produce more offspring.
22. final phase of cell division
24. square, graphical representation of the possible genotypes of an offspring arising from a particular cross or breeding event.
25. organism's reproductive cells
26. regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.
27. first stage of cell division
29. infection

1. are organisms that need to eat food to obtain their energy
4. unit of heredity
6. the process in which ribosomes in the cytoplasm or endoplasmic reticulum
8. cell division that results in two daughter cells
9. bond, attraction between a partially positively charged hydrogen atom
11. organisms capable of creating simple carbohydrates such as glucose, from gaseous carbon dioxide.
12. pairs, two chemical bases bonded to one another forming a "rung of the DNA ladder."
13. organic molecules
16. replication, the process by which DNA makes a copy of itself during cell division.
18. the action or process of mutating.
20. fatty acids
21. portion of the cell cycle that is not accompanied by observable changes under the microscope, and includes the G1, S and G2 phases
23. acid, organic compounds that combine to form proteins.
28. arrangement or organization