This jelly-like substance fills the inside of a cell.
What is cytoplasm?
This is the first stage of a butterfly’s life cycle.
What is an egg?
This striped big cat is the largest member of the cat family.
What is a tiger?
This organ pumps blood through your body.
What is the heart?
This ocean creature has three hearts and blue blood.
What is an octopus?
The “brain” of the cell that contains DNA.
What is the nucleus?
A tadpole becomes this adult amphibian.
What is a frog?
This mammal is known for hanging upside down and moving slowly.
What is a sloth?
You use this muscle to breathe—it separates your chest and abdomen.
What is the diaphragm?
This desert animal can survive for weeks without water.
What is a camel?
These are the small "factories" in cells that make proteins.
What are ribosomes?
This type of reproduction involves only one parent and no joining of cells.
What is asexual reproduction?
Animals with a backbone are called this.
What are vertebrates?
This system controls your body using electrical signals.
What is the nervous system?
These creatures were the first living things in space.
What are fruit flies?
This green organelle helps plants turn sunlight into energy.
What is the chloroplast?
The process of a caterpillar turning into a butterfly inside a chrysalis.
What is metamorphosis?
This group of animals includes frogs, toads, and salamanders.
What are amphibians?
These are the tiny air sacs in your lungs where oxygen is exchanged.
What are alveoli?
This reptile can shoot blood from its eyes to scare off predators.
What is a horned lizard?
This double-layered structure controls what enters and leaves the cell.
What is the cell membrane?
This flowering plant part contains the ovule and will become a fruit.
What is the ovary?
This word describes animals that can live both in water and on land.
What is amphibious?
These vessels carry blood back to the heart.
What are veins?
These tiny animals can survive in space and boiling water.
What are tardigrades or water bears?