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JSS2: BASIC SCIENCE - 1ST TERM

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  1. Living Things (Habitat) | Week 1, 2 & 3
    8Topics
    |
    1 Quiz
  2. Living Things (Uniqueness of Man) | Week 4
    9Topics
    |
    1 Quiz
  3. Growth and Development | Week 5 & 6
    4Topics
    |
    1 Quiz
  4. Chemicals | Week 7 & 8
    4Topics
    |
    1 Quiz
  5. Work, Energy & Power | Week 9
    4Topics
    |
    1 Quiz
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Habitat is the area where an organism lives, or it is the locality where an organism can live successfully. Habitat can also be the natural environment of an organism.

Different organisms (plants and animals) are found in different habitats.

There are two major habitats:

1. Aquatic Habitat.

2. Terrestial Habitat.

Aquatic Habitat:

Organisms that live in water are known as aquatic organisms. Aquatic habitat is a water environment in which organisms live naturally, for example, rivers, lagoons, seas, lakes, etc.

Aquatic Habitat

There are three types of aquatic habitat. They are:

1. Freshwater Habitat.

2. Marine (Saltwater Habitat)

3. Estuarine Habitat (brackish)

Fresh Water Habitat:

Includes rivers, streams, lakes, ponds, and springs. Examples of organisms found in freshwater habitats are crabs, tilapia fish, catfish, spirogyra, water lily, etc.

crab
Crabs are found in freshwater.

Salt Water (Marine) Habitat:

Includes the sea and the ocean. Examples of organisms found in these habitats are seaweeds, whales, sharks, octopuses, dolphins, etc.

whale
Whales can be found inhabiting all of the world’s major oceans.

Estuarine Habitat:

The aquatic habitats in which salt water and fresh water naturally intermix contain traces of salt (brackish) and are known as Estuarine habitats, for example, lagoons and bays. Organisms that are found here include diatoms (seaweed), squids, sharks, mackerel, sea catfish, whales, barnacles, etc.

Squid
Squids are found in estuaries.

Terrestrial Habitat:

Terrestrial habitat simply means the land environment where certain organisms live naturally, for example, snails, grasshoppers, etc. Other terrestrial organisms include human beings, wild animals, domestic animals, and plants.

 Forests, deserts, grasslands, rainforest, tundra, and mountains are just a few examples of terrestrial habitats.

The terrestrial habitats can be arboreal (on trees), on the ground, or under the ground. Examples of animals found in terrestrial habitats are:

1. Arboreal habitats: birds, monkeys, etc.

orangutan
Orangutans spend nearly their entire lives in trees.

2. On the ground: man, elephants, lions, etc.

lion

3. Under the ground: ants, earthworms, termites, etc.

ants

Examples of terrestrial plants are orange trees, pineapple plants, maize, pawpaw trees, mango trees, etc.

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