Explanation

Prolactin is responsible for the production of milk in the human body.

It stimulates the mammary glands to produce milk, especially after childbirth.

Prolactin works in conjunction with oxytocin, which helps release the milk.

Explanation

Trilobites are an extinct group of marine arthropods that lived during the Paleozoic Era.

They are one of the earliest known groups of arthropods.

Explanation

Community Participation in PHC involves involving:

• local communities in decision-making,
• planning, 
• delivery of health services,
• recognizing their valuable insights and fostering effective,
• context-specific healthcare interventions.

It recognizes that communities possess valuable knowledge about their health needs and priorities

Explanation

Vaccination introduces weakened or inactive germs (antigens) into the body.

In response, the immune system produces antibodies to recognize and fight future infections.

Explanation

The nucleolus synthesizes rRNA (ribosomal RNA), which combines with proteins to form ribosomal subunits.

These subunits later form complete ribosomes in the cytoplasm for protein synthesis.

Explanation

Tertiary treatment involves filtering, chlorination, and removing salts to further purify wastewater.

It is the final and most advanced stage of wastewater treatment.

Explanation

The medulla oblongata is part of the hindbrain and plays a key role in transmitting messages between the brain and the spinal cord.

It also controls essential functions such as breathing, heart rate, and blood pressure.

Explanation

Nitrogen is the most extensively used nutrient for field crops as it promotes leaf and stem growth, especially in cereals.

It is essential for photosynthesis and overall plant development.

Explanation

Explanation