vocab (Ka’Maria)

4. a gas filled sac in many bony fishes that help control buoyancy
6. the process of shedding an exoskeleton
8. body plan where body parts are arranged around a central axis
12. eggs with a protective membrane
14. an organ in pregnant animals that provides nutrients
15. a hydraulic system in echinoderms
17. an animal with a backbone
19. animal lacking a backbone
20. body plan with a single plane of symmetry, resulting in two mirrored halves

1. an internal skeleton
2. an organism that possesses both male and female reproductive organs
3. an organism that generates its own body heat
5. lacking symmetry no consistent body plan
7. milk producing glands found in female mammals
9. a free swimming bell shaped form of a cnidarian
10. asexual reproduction where a new organism develops from an outgrowth
11. a firm, flexible connective tissue that provides support in some vertebrates
13. a rigid external covering that supports and protects there body of some interbrates
14. a sessile form of a cnidarian
16. an organism that relies on external sources of heat to regulate it’s body temperature
18. organism that life on or near the bottom of a body of water