How do reptiles typically shed their skin?
All at once or in large patches
Why is the term “cold-blooded” not an accurate description of ectotherms?
Ectotherms can have a higher body temperature than an endotherm.
What type of fish is a shark?
Cartilaginous fish
An endotherm that is covered with hair or fur, breathes through lungs, and produces milk to feed her young
Mammal
What is the function of a swim bladder in bony fish?
Allows fish to ascend or descend in water
Name an example of an egg-laying mammal
platypus or echidna (spiny anteaters)
Why endotherms can live in colder parts of the world compared to ectotherms?
Endotherms produce heat internally and do not become sluggish in cold weather.
Most fish have a very well-developed sense of
All of the above
A creature that has feathers, hollow bones, a beak, and lays eggs
Bird
What is the main function of a bird's keel?
To support their chest muscles
A creature that lives a “double life,” starting as a tadpole in the water and changing into a land animal?
Amphibians
List three ways ectotherms regulate their body temperatures
bask in the sun
burrow, seeking shade or water to cool down.
change the color of their skin
Why are snakes so flexible?
They have over 400 vertebrae
Which animal group or class do kangaroos belong to?
Marsupials
A method of locating objects by interpreting reflected sound waves
Echolocation
How do fish reproduce?
External fertilization. The female lays eggs, and the male fertilizes the eggs at a later time.
What is a challenge faced by endotherms?
They can overheat in hot conditions or freeze in cold weather if unprotected.
They require more food (for energy)
How does the texture of reptile eggs help them survive on land?
The leathery texture keeps the eggs from breaking or drying out
Bats belong to which class of animals?
Mammals (Flying mammals)
What is an operculum?
Hard, flap-like cover located on both sides of a bony fish's head that covers and protects the gills
Name the four characteristics of vertebrates
Backbone
Endoskeleton made of bone or cartilage
Closed circulatory system
Brains protected by craniums or skulls
What are the two main groups of vertebrates?
Ectotherms and endotherms
How are birds different from other vertebrates?
(list 3 features)
Feathers
Hollow bones with struts for support
Strong wings, supported by a specialized fused collarbone (furcula) and strong breast muscles
Highly efficient respiratory system with air sacs
Their skin is highly permeable, allowing them to breathe and absorb water through their skin
Amphibians
What is the study of herpetology?
The study reptiles and amphibians