Question

Name two sea-animals which have streamlined body shapes and two sea- animals which do not have streamlined body shapes.

Answer 1

Aquatic habitat:

1. The water bodies are home to a large number of flora and fauna.
2. The aquatic ecosystems consist of the largest mammal alive, the blue whale, shark, and rays as aquatic fauna and water hyacinth, lotus, and Vallisneria as aquatic flora.

Sea animals with streamlined bodies:

1. Fishes and dolphins are some examples of sea animals with streamlined bodies.
2. The streamlined body helps to avoid the huge exerting pressure of the water above them.
3. It also provides an easy way to cut through the water and move swiftly without any resistance and at times helps escape the predators also.

Sea animals without streamlined bodies:

1. Octopus and squid are aquatic animals without streamlined bodies.
2. Their bodies were covered by a calcareous shell.
3. These animals lack a characteristic streamlined body like the other aquatic animals because they have the ability to change their body shape to streamline when moving inside the water.
4. These animals stay feel in the ocean and catch whatever prey moving around there towards them.