Fishes
A fish is what type of vertebrate?
aquatic
Feathers are composed of what protein?
keratin
What refers to more than one species?
fishes
What is it called when birds run their beak or bill over their feathers to keep the feathers smooth, clean, and in place?
Preening
What group of birds are nocturnal carnivores with good hearing and night vision?
Owls
What refers to one or more individuals of the same species?
fish
What is it called when birds shed and replace their feathers?
molting
What body shape are fish that allows them to move rapidly in water?
streamlined
What are some ways to figure out what a bird eats?
Look at the design of their beak and feet.
How many major organs are in a bird's digestive system?
3
Do freshwater fish drink water and produce urine?
Yes
What group of birds is nicknamed "The lions of the air"?
Birds of Prey
Do most fish have eyelids?
No
What organ do birds use to do their preening?
uropygial gland
What is a bird's gizzard in its digestive system?
The second part of the stomach has muscular walls and grinds the food into smaller pieces, often with the aid of sand or small stones.
Describe a shark's body shape.
A shark's body is shaped like a torpedo.
How are bird bones different from the bones of other vertebrates? Why is that?
Bird bones are hollow with large air spaces and internal strutting to help increase strength and decrease weight for flight.
Why do sharks never stop swimming?
If a shark stops swimming they have a hard time breathing and maintaining buoyancy.
Describe the "crop" in a bird's digestive system.
A stretchy organ used to store excess food so the bird can digest it more slowly.
How do rays and skates draw respiratory water into their gills?
They draw the water into their gills through 2 large openings on top of their head behind their eyes called spiracles.
How are most fishes coloration? Why is this?
Fish are countershaded. Top is darker than underneath. This helps protect them.
What is DDT and what effect does it have on birds?
DDT was a pesticide used in the 1950s to kill mosquitoes/malaria; resulted in thin eggshells of birds causing population decline.
How to fish hear?
Fish hear from vibrations from water through their body to their internal ears.
Name 3 reasons that birds are important.
1. Birds provide insect, rodent, and weed control.
2. They distribute seeds and pollinate flowers.
3. They are an important part of the food chain.
Describe a bird's proventriculus in its digestive system.
The first part of the stomach softens food with gastric acid, mucus, and other digestive juices.