In the Ocean
a small sea animal that catches food with stinging tentacles; many live in large colonies on coral reefs
Coral
an animal without a backbone, such as an insect
invertebrate
their legs
the pattern of changes that occurs in each generation of a species
life cycle
an organ used to breathe underwater
gills
a cold-blooded vertebrate with scaly skin
reptile
What type of vision do humans have?
Stereoscopic
a major change in an animal’s body shape during its life cycle
metamorphosis
a gas-filled bag that helps a fish float to float in water
swim bladder
small, overlapping plates that protect the skin
scales
Eyes contain sensors called _____________ to detect light
photoreceptors
binocular vision
the umbrella-shaped, swimming stage in the life cycle of jellyfish and other cnidarians
Medusa
an animal whose temperature varies with its surroundings, also known as cold-blooded
True or false: all animals have touch receptors all over their bodies.
False
What are the tiny hairs that cover many tiny organisms and help them move?
Cilia
Fish, jellyfish, and squid move by _____________
jet propulsion
What do snakes use for taste and smell
Jacobsen's organ
How does stereoscopic vision help us to see in 3D
Both of our eyes see at slightly different angles, which creates a 3D image.
Name the four types of worms:
ribbon worms, flatworms, segmented worms, and roundworms