Hint: Habitat is the type of natural environment in which the organism lives. It can be terrestrial, aquatic, marine depending on the requirement of the organism.
To solve this question, we must know about the various types of habitats.
A habitat can be defined as the type of natural environment in which an organism comfortably lives.
The physical factors like soil, moisture, temperature, moisture, light intensity affects the habitat of an organism.
The biological factors like food, predators and mates for reproduction are also necessary for choosing a habitat. The types of habitats are-
1) Fresh water - It includes rivers, streams, lakes, ponds, marshes. The organisms which live in fresh water are called freshwater organisms. These organisms are adapted to survive in water. Example fishes.
2) Marine- The organisms which can survive in marine or salty water are called marine organisms. Marine habitats can be the sea, oceans. For example, whales, sharks etc.
3) Terrestrial- The plants and animals which live on land are called terrestrial organisms. Terrestrial habitat includes forests, grassland, wetlands etc. Many factors like soil, temperature, moisture, sunlight affect the biomass of a place. Example- trees, cat, dog humans etc.
Hence, the correct answer is Option ‘A’.
Note: The organisms living in different habitats are modified accordingly.
For example- animals living in land have well developed limbs, lungs for respiration. Plants adapted for territorial habitat have well developed roots to absorb water from soil.