A threat is something ...
bad
good
Does a marine heat wave make the ocean cooler or warmer?
warmer
cooler
When corals bleach
They get less healthy
They get healthier
An ecosystem includes ...
the places of habitat
all living things and the place they live in
all living things
A reef is made of ...
just one coral
many corals
The skeleton is ...
outside your body
inside your body
Is coral a plant or an animal?
Coral is an animal
