primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves, protist
decaying organic matter (dead plants & animals)
(of flora or fauna) in imminent danger of extinction
(of flora or fauna) likely in the near future to become endangered
the area where a freshwater stream or river merges with the ocean and provides a protected nursery area for baby fish, shellfish, crabs and shrimp.
the death of every member of a species
feeding relationships that exist between plants and animals
where a plant or animal lives
a species (plant or animal) that influences the survival of many other species in an ecosystem
a less than average tide occurring at the first and third quarters of the moon
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
tiny algae and animals that float in water and are carried by waves and currents
When the tidal range is greatest. (full moon and new moon). Occurs 2 times each month.
Mixture of fresh and salt water
oxygen dissolved in water, dissolved oxygen is important for fish and other aquatic animals
hardy grass that lives in salt marsh that helps hold the soil together to stand against strong winds, waves and flooding.
contains calm brackish water, is a nursery for many sea animals, feeding ground that contains spartina, dominated by salt-tolerant grasses above the low-tide line and by seagrasses under water. Flat land that is underwater on a daily basis.
community of living things plus the nonliving features of the environment that support them
the process of getting use to environmental conditions and surviving
Plants harvest light energy from the sun
Light energy is changed into chemical energy by making glucose (food). Plants are eaten by organisms such as turtles and fish. Animals and plants die and decompose and are used or are eaten by other animals to continue the cycle.