Biology Crossword

2. is a membrane-bound organelle that contains the cell's chromosomes.
3. Process of programmed cell death. It is used during early development to eliminate unwanted cells.
4. An organism living in, on, or with another organism in order to obtain nutrients, grow, or multiply often in a state that directly or indirectly harms the host.
7. A blood clot that forms on the wall of a blood vessel or in the heart when blood platelets, proteins, and cells stick together
8. Any of the alternative forms of a gene that may occur at a given locus.
11. The process by which a biological structure, especially a relatively simple structure, is formed by a sequence of enzymic reactions
13. one of the three principal types of nutrients used as energy sources (calories) by the body.
14. biological preparation formulated to provide acquired immunity for a particular disease.

1. It is a waxy substance made in the liver, found in the blood and cells. It is needed to make cell walls, tissues, hormones, vitamin D, and bile acid.
5. The process by which a species becomes fitted to its environment.
6. is the excitatory ability that living organisms have to respond to changes in their environment.
9. Is an organic compound and substance, which means that it contains carbon. It is also an essential nutrient that the body may need to get from food.
10. Making a copy, a likeness, and thereby providing for the continued existence of species.
12. A group of signs and symptoms that occur together and characterize a particular abnormality or condition.
15. Compounds needed for vital processes like the building of proteins and synthesis of hormones and neurotransmitters.