If there is a drought and all the grass dies ..........
the desert ecosystem may be improved
the desert ecosystem may be harmed
............. they are too small organisms that can't be seen by eyes
Microorganisms
small fish
Food webs can be destroyed due to pollution
False
True
Energy ........ created or destroyed but it transfers.
can’t be
can be
Overfishing in seas and oceans
can affect the ecosystem
can't affect the ecosystem
..............When water is very warm, coral reef will get rid of the algae living in their tissues it make coral reefs turn completely into white.
blushing coral
Coral bleaching
destroying coral reefs
The ........... feed on microorganisms that float on the surface of the sea
Seabirds
plants
Microorganisms make their own food and live in ........... habitats
cold water
cold land
hot water
The first source of energy is the .........
water
sun
moon
Seabirds build their nests on the topof mountain cliffs
If There is a heavy rain in the desert...........
If there is a gentle rain in the desert ............
...........energy transferred to the primary consumer when it feeds on plant
Primary consumer
Secondary consumer
Decomposer
If the temperature of water increase the sea birds will die
................provide food and shelter for large numbers of fish and other marine organisms
Coral reef
Seabirds feed on ............
microorganisms
Coral reefs harmed by feeding on plastic
....................are producers in the marine food web
seabirds
Leakage of oil into seawater ................ affects the marine organisms.
positevely
negatively
If there are many top predators in the food web ...................
the food web in the ecosystem may be destroyed
the other organisms in the food web may be harmed