New words
New words
NW & OW
OW
OW
100

Harmful impact on the environment resulting from human activities 

pollution

100

the amount of salt in the water

salinity 

100

an animal with a backbone.

vertebrate 

100

small particles of sediment 

clay

100

an assemblage of organisms in an ecosystem

food web

200

an animal that captures other animals for food

predator

200

salt-water wetland between terrestrial and marine ecosystems

Salt marsh

200

area that periodically have waterlogged soils, support plants adapted to wet soil, nd are covered or occasionally submerged by water.

wetlands

200

an organism that eats plants, meat, or both

consumer

200

a sequence of living organisms in an ecosystem 

food chain

300

an animal caught for food

prey

300

sedimentary particles which can be distinguished with a naked eye

sand

300

the bottom dwelling community

benthos

300

the study of relationships between organisms and their environment  

ecology

300

semi-enclosed body of water

estuary 

400

an organism that makes food

producer

400

an organism that will eat just about anything

scavenger 

400

something capable of being broken down

biodegradable 

400

dead plant and animal bacteria, and the bacteria decomposing them

detritus

400

swimming animals of open water

nekton

500

process used by animals and plants to release energy from food 

respiration

500

ground that is elevated above the lowland, marshalls, and rivers.

upland

500

a type of microscopes

diatom

500

the study of fish

ichthyology 

500

drifting aquatic plants and animals

plankton