Explanation

Phytoplankton are microscopic plants that perform photosynthesis and form the base of the marine food chain.

They provide energy for small marine animals, which are then eaten by larger predators.

Explanation

A tissue is a group of similar cells working together to perform a specific function in an organism.

Examples include muscle tissue, nerve tissue, and plant vascular tissues like xylem and phloem.

Explanation

The diaphragm is a muscle that separates the chest cavity (thoracic cavity) from the abdominal cavity.

It plays a key role in breathing by contracting and relaxing to allow air in and out of the lungs.

Explanation

Regular walking helps lower blood sugar levels by improving insulin sensitivity.

It is a low-impact exercise suitable for all ages and helps manage diabetes effectively.

Explanation

The liver plays a key role in the digestive system by producing bile, which helps in fat digestion.

It also processes nutrients, detoxifies chemicals, and regulates metabolism.

Explanation

Consumer: Fungi obtain nutrients by breaking down organic matter rather than producing their own food.

Decomposer: They play a crucial role in ecosystems by decomposing dead organisms and recycling nutrients.

Explanation

Rat, zebra, and goat are herbivores, meaning they eat plants — placing them as primary consumers.

Primary consumers occupy the second trophic level in a food chain.

Explanation

Explanation

Fever is a symptom, not a disease—it indicates the body’s response to infection or illness.

It reflects an underlying condition like viral or bacterial infections, signaling the immune system is active.

Explanation

MRI (Magnetic Resonance Imaging) uses a strong magnetic field and radio waves to create detailed images of organs and tissues.

It does not use ionizing radiation, unlike X-rays or CT scans.