U4 W3

Front

tide

Back

the regular rise and fall in the level of the sea

Front

protection

Back

when something is kept safe

Front

competition

Back

when people or animals are trying to be more successful than others

Front

adapted

Back

something changed to fit a new need

Front

caution

Back

to warn

Front

ecosystem

Back

a community of living things and their environment

Front

habitat

Back

the natural home of a plant or animal

Front

endangered

Back

a species that is at risk of extinction

Front

biodiversity

Back

the variety of different species in an area

Front

conservation

Back

the protection and preservation of natural resources