Vertebrates

What characteristic is unique to mammals?

The testes and ovaries are part of which organ system?

This animal spend the first part of its life in the water.

What characteristic classifies a mammal as a montrotreme?

A animal that controls its internal temperature is a _______.

What is the length of time from fertilization to birth?

When the temperature of the environment changes the temperature of a reptile ___.

What is an adaptation that allows mammals to live in cold climates?

Your nasal cavity, bronchi, and lungs are part of which system?

The bones in the backbone are called the _____.

Fish take in oxygen through their _______.

What helps a bird to fly?

What organ system removes waste from the body?

The respiratory system brings ___ into the body.

Fish, reptiles, and amphibians are all _____.

What substance in your mouth starts chemical digestion?

What makes a fish different from a squid?

What kind of fish is this?

Birds are the only animals that have _____.

Most adult amphibians take in oxygen through their _____.

What is an organism with a backbone?

______ are the only animals that have hair or fur.

What kind of animal is?

This animal is a _____.

What kind of mammal is this animal?

What phylum is this animal in?

What kingdom is this organism in?

What is this animal?

What organ system destroys pathogens?

What is the flexible supporting rod in a chordates back called?