Estuaries and Intertidal Zones

Living things present in an ecosystem are called: ____

• Abiotic

• Antibiotic

• Biotic

• Symbiotic

Abiotic components in an ecosystem include the following except:

• Sun

• Temperature

• Dissolved Oxygen

• Bacteria

Which of the following statement is correct?

I. In an ecosystem, living things interacts with one another in order to survive.

II. The interaction between living and non-living components makes the ecosystem stable.

• I

• II

• Both I and II

• Neither I nor II

Which of the following statement shows a correct interaction of the sun in an ecosystem?

I. The sun is vital for plants to produce their own food.

II. Photosynthesis only occurs in surface or shallow waters where enough sunlight is absorbed.

III. When the sun gives off too much heat that is absorbed by shallow water would result to less dissolved oxygen.

• I

• II

• III

• I, II, and III

These are organism that manufacture their own food through photosynthesis.

• Producers

• Scavengers

• Consumers

• Detritivores

These are organism that decomposes dead plants and animals.

• Producers

• Scavengers

• Consumers

• Detritivores

These are organism depend on other organisms for food.

• Producers

• Scavengers

• Consumers

• Detritivores

Phytoplankton and zooplankton are classified as: ____

• Producers

• Scavenger

• Consumers

• Detitrivores

Bacteria and fungi are classified as: _____

• Producers

• Scavenger

• Consumers

• Detitrivores

It is a body of water where freshwater and seawater are mixed.

• Estuary

• Intertidal zone

• Seashore

• Ocean