Streamlined body is an aquatic adaptation.

A streamlined body is a characteristic that allows an organism to move through water with minimal resistance. This adaptation is particularly important for aquatic animals as they need to be able to move efficiently and quickly in their aquatic environment.

Here is a detailed explanation of why a streamlined body is an aquatic adaptation:

1. Definition of a streamlined body:
A streamlined body refers to a shape that is designed to reduce drag or resistance when an organism moves through a fluid medium, such as water. It is typically elongated and tapered at both ends, resembling a teardrop shape.

2. Benefits of a streamlined body:
Having a streamlined body provides several advantages to aquatic organisms:

- Reduced drag: The streamlined shape minimizes the resistance of water against the organism's body, allowing it to move through water more easily and efficiently.
- Increased speed: By reducing drag, a streamlined body enables aquatic organisms to swim faster and more effortlessly.
- Energy conservation: With less drag, organisms can conserve energy while swimming, as they don't need to exert as much force to overcome resistance.

3. Examples of aquatic organisms with a streamlined body:
Numerous aquatic animals possess a streamlined body shape as an adaptation to their aquatic lifestyle. Some examples include:

- Fish: Fish are known for their torpedo-shaped bodies, which allow them to move swiftly through water.
- Dolphins: These marine mammals have sleek bodies that enable them to swim at high speeds.
- Sharks: Sharks have a streamlined body shape that assists them in swimming efficiently and hunting prey effectively.
- Whales: Whales also have a streamlined body, allowing them to travel long distances in the water with minimal effort.

In conclusion, a streamlined body is an aquatic adaptation that provides aquatic organisms with reduced drag, increased speed, and energy conservation. This adaptation is essential for their survival and ability to navigate through their watery habitats efficiently.