_Animal Diversity Flashcards
What are animals part of?
the animal kingdom
What are animals?
Heterotrophs (rely on other sources for food)
What do animals have that respond to stimuli?
Sense organs
What are vertebrates?
Organisms with a spine and brain
Name all 5 vertebrates
Fish, Amphibians, Reptiles, Birds, Mammals
What is the origin of all vertebrate species?
Fish
What do fish have, and where do they live?
Scales, in water
What type of respiration do fishes do?
Branchial respiration
What is branchial respiration?
breathing across the gills
What does a fish’s heart contain?
1 atrium and 1 ventricle
What does the atrium and ventricle do?
Pumps up un-oxygenated blood to the gills
Is the fish’s heart efficient?
no
What eggs do fish lay, and where?
They lay soft eggs in the water
Where do adult amphibians live?
on land and water
Where do young amphibians live?
Water
What respiration does young amphibians do?
branchial respiration
From where do amphibians receive some oxygen supply?
Through wet skin and lungs (cutaneous breathing)
What was the first vertebrate to live on land?
Amphibians
What do amphibians go through?
Metamorphosis
What is metamorphosis?
(a change in body structure)
How many atriums and ventricles do amphibians have?
2 atriums, 1 ventricle
What do reptiles have?
Scales
Where do reptiles breathe from?
Lungs
Where can young reptiles be laid?
On land
Why can young reptiles be laid on land?
Due to the egg’s hard, thick shells
What blood are reptiles?
Cold-blooded
How do reptiles control temperature?
By taking in heat from the outside or being very active
What did reptiles evolve from?
Amphibians
How many atriums and ventricles do reptiles have?
2 atriums, 1 ventricle
What do the 2 atriums do?
They separate oxygenated and deoxygenated blood coming from the body and lungs
What does the ventricle do?
It sends a mix of oxygenated and deoxygenated blood to the lungs
How do alligators and turtles live?
They live in water, but must breathe air and lay their eggs on land