Biological Science Crossword Puzzle
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QUESTIONS LIST:
- astmmetry : cannot be cut into equal halves
- bilateral symmetry : can be cut into left and right sides only
- radial symmetry : body parts are arranged in a circle around a center point
- exoskeleton : skeleton is on the outside of the body
- endoskeleton : skeleton is on the inside of the body
- invertebrate : does not have a backbone
- parasite : an organism that lives in or on another organism, harming it
- molting : shedding and replacing of an exoskeleton, skin, or feathers
- metamorphosis : changes in form as animal becomes an adult
- vertebrate : has a back bone
- gills : organs that exchange carbon dioxide for oxygen in water
- amnion : protective membrane that surrounds the embryo
- ectotherm : animal that heats its body from its environment
- endotherm : animal that generates its body heat from the inside
- placenta : connects fetus to mother for nutrient and gas exchange
