skeletons Flashcards
1
Q
3 forms of the skeletal system in the animal kingdom
A
- hydrostatic
- exoskeleton
- endoskeleton
2
Q
hydrostatic skeletal system
A
- found in soft bodied animals.
- consists of fluid-filled cavity
- pressure of fluid and action of muscles creates shape and movement
3
Q
describe an exoskeleton form of the skeletal system
A
- external layer
- usually made of chitin
- can be made harder/stronger with added calcium carbonate to make shells
4
Q
describe an endoskeleton form of the skeletal system
A
internal structures (under skin) made of bone of cartilage
5
Q
describe an endoskeleton form of the skeletal system
A
internal structures (under skin) made of bone of cartilage
6
Q
describe an endoskeleton form of the skeletal system
A
internal structures (under skin) made of bone of cartilage
7
Q
3 hydrostatic animals
A
- sea anemone
- jellyfish
- earthworm
8
Q
3 endoskeletal animals
A
- humans
- robin
- puffin
9
Q
3 vital functions of the skeletal system
A
- support; to give shape
- protection; for vital organism
- movement; with muscles and joints
10
Q
3 exoskeletal animals
A
- snails
- lobsters
- shrimp
