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