Explanation

Explanation

A response is the reaction or change in behavior of an organism due to a stimulus.

It helps the organism adapt or react to its environment (like moving away from heat).

Explanation

The human trunk includes:

• Vertebral column: 26 bones
• Ribs: 24 bones (12 pairs)
• Sternum: 1 bone
• Hyoid bone: 1 bone (sometimes included)
• Coccyx: 4 fused bones (counted as 1)

Total: 26 (vertebrae) + 24 (ribs) + 1 (sternum) + 1 (hyoid) + 4 (coccyx, counted as 1) = 58 bones

Explanation

CFCs (Chlorofluorocarbons) are not produced by vehicles.

They are primarily released from refrigerants and industrial processes.

CO2, NO2, and CO are all pollutants emitted by vehicle exhaust.

Explanation

Reactivity is a chemical property that describes how easily a substance undergoes chemical change.

It indicates how a substance reacts with others to form new substances.

Explanation

During respiration, plants break down glucose to release energy (ATP), producing carbon dioxide and water as byproducts.

This process occurs in the mitochondria.

It happens day and night.

Explanation

Explanation

Bile is a digestive fluid produced by the liver and stored in the gallbladder, but it does not contain digestive enzymes.

Instead, bile contains bile salts, which help emulsify fats, making them easier for enzymes like lipase to break down.

Explanation

Angiography is a medical imaging technique used to visualize arteries and veins by injecting a contrast dye.

It helps in diagnosing cardiovascular diseases (CVDs) by detecting blockages or abnormalities in the arterial tree.

Explanation

Carbon dioxide, methane, and chlorofluorocarbons (CFS) are all significant air pollutants.

They contribute to global warming, ozone depletion, and air quality deterioration.