Frog Life Cycle
What do tadpoles use to breathe underwater?
Gills
What do we call animals that have a backbone?
Vertebrates
Are mammals warm-blooded or cold-blooded?
Warm-blooded.
What type of vertebrate lays eggs in water and spends part of its life in water and part on land?
Amphibians.
What is metamorphosis?
A process in which an animal changes its body form as it develops.
What body part does a froglet lose as it develops into an adult frog?
It's tail
Which group of animals has an exoskeleton: fish, birds, or arthropods?
Arthropods
Are reptiles warm-blooded or cold-blooded?
Cold-blooded.
What do female mammals produce to feed their babies?
Milk.
What are the three main stages of incomplete metamorphosis?
Egg, nymph, and adult.
What body structures develop to help a froglet move around on land?
Legs
What is the name for animals that do not have a backbone?
Invertebrates
Which two animal groups in this list are warm-blooded: fish, birds, amphibians, and mammals?
Birds and mammals.
Which group of vertebrates has young members that breathe through gills before developing into adults?
Amphibians.
What are the four stages of complete metamorphosis?
Egg, larva, pupa, and adult.
What organs do adult frogs use to breathe air?
Lungs
A scientist discovers an animal with a hard outer covering instead of an internal skeleton. What type of support structure does it have?
An exoskeleton.
A lizard's body temperature changes depending on the temperature of its surroundings. Is it warm-blooded or cold-blooded?
Cold-blooded.
A baby manatee drinks milk from its mother. What does this tell us about the animal group to which manatees belong?
They are mammals.
What stage of development occurs in complete metamorphosis but not incomplete metamorphosis?
The pupa stage.
What is the name of the process in which a tadpole changes into an adult frog?
Metamorphosis
A dolphin, a frog, and a bird look very different. What important body structure do all three have in common?
A backbone (they are vertebrates).
Are arthropods vertebrates or invertebrates, and are they generally warm-blooded or cold-blooded?
Invertebrates and cold-blooded.
A student compares a fish, a reptile, a bird, and a mammal. Which body structure would all four animals have, even though they breathe in different ways?
A backbone.
A caterpillar becomes a chrysalis before emerging as a butterfly. Is this complete or incomplete metamorphosis? Explain why.
Complete metamorphosis, because it includes a pupa stage and four distinct life stages.