Biology

4. A tiny cell structure that carries out specific functions within a cell
5. Stores food, water, and waste
6. Scientific study of how organisms are classified
8. Single celled organisms that lack a nucleus; prokaryotes
9. A substance used in a vaccination that consists of pathogens that have been weakened or killed but can still trigger the body to produce chemicals that destroy pathogens
12. The balance of body parts on both sides around you
14. Vertebrate whose body temperature is regulated by internal heat, and skin covered in hair or fur and glands that produce milk to young
15. Tiny nonliving particle that enters then reproduces inside a cell
18. Control center of a cell
20. Only in plant cells photosynthesis happens and sugars are produced
23. A eukaryotic organism that cannot be classified as an animal, plant, or fungus

1. Animal without a backbone
2. An animal with a backbone
3. An organism that benefits by living with, on, or in a host in a parasitism interaction
7. Most basic level of organization in the classification of organisms
10. A living thing
11. A body structure that is composed of different kinds of tissues that work together
13. Group of similar cells that perform a specific action
16. A group of similar organisms
17. Energy for the cells
19. Basic unit structure and function of living things
21. Latin word that means to breakdown
22. An organism that provides a source of energy or suitable environment for parasite