Vertebrate have ___________; Invertebrates do not.
backbones
Marine organisms live in:
Saltwater
Fishes & birds were created on which day of creation?
Fifth Day
What part of a feather is like Velcro?
BARBULES
Which animal is most streamlined-- cat, dolphin, chicken, or elephant ?
DOLPHIN
Define: Equilibrium
Balance
True or False: A freshwater fish is constantly absorbing water into its body.
True
Diffusion pushes oxygen into the blood vessels of which part of the fish ?
The Gills
What does the preen gland do?
MAKES OIL
What is the purpose of down feathers?
Provides insulation for the bird
The process in which solutes move toward the solvent to balance is called ?
Diffusion
Is the clam an invertebrate or a vertebrate?
Invertebrate
The octopus uses what method to move through the water?
2. Jet Propulsion
The faster a wing is traveling through the air, the (greater) or (lesser) the lift.
GREATER
Name 2 design features in birds that allow them to fly
1. hollow bones
2. hollow feather shafts
3. streamlined
4. wings
process in which solutes that can’t move pull water toward them is called?
Osmosis
When a fish wants to rise up to a shallow depth in the water, it:
1. puts oxygen in its swim bladder
What is the main job of the caudal fin on a fish?
3. propelling the fish through the water
When a bird flaps its wings downwards, are they (spread out) or (pulled in close to the bird’s body)?
SPREAD OUT (it increases thrust)
True or False: When a large bird takes off, it usually faces into the wind.
TRUE
The barrier that lets some things cross over, but not others is called:
Semi-Permeable Membrane
For what 2 purposes does a clam use its foot?
moving and digging
Some fish use the dorsal fin for protection, but all of them use it to: (choose one)
2. keep the fish rightside up in the water
True or False: When an airplane is flying, there is more air above the wing than there is below the wing.
FALSE
When a wing travels through the air, it generates lift. When a bird flaps its wings, it generates: ______________.
THRUST (Upward Push)