Angiosperms primarily reproduce through sexual reproduction, involving flowers and seeds.

Ferns primarily reproduce through sexual reproduction, producing spores.

Unicellular organisms primarily reproduce asexually, often through processes like binary fission.

The diaphragm is the primary muscle that contracts and relaxes to facilitate breathing.

Particulate matter is a primary pollutant in smog, contributing to air quality issues.

Photosynthesis is the primary process by which energy from sunlight is converted into chemical energy by plants.

Algae are the primary producers in a freshwater ecosystem as they perform photosynthesis.

Plants are the primary producers in terrestrial ecosystems as they convert sunlight into energy through photosynthesis.

Reproduction ensures the continuation of a species by producing offspring.

Reproductive health education aims to inform individuals about safe practices, including the prevention of sexually transmitted diseases.

Recombinant DNA technology is used to create vaccines, produce antibiotics, and synthesize hormones like insulin.

Restriction enzymes are proteins that cut DNA at specific sequences, which is essential for cloning and genetic engineering.

The increase in human population is attributed to a combination of increased birth rates, decreased death rates, and improved healthcare.

Auxins inhibit the growth of lateral buds, maintaining apical dominance and directing growth towards the apex.

Gibberellins promote enzyme production that breaks down stored food in seeds, facilitating germination.

Potassium plays a crucial role in water regulation and osmotic balance in plants, helping to maintain turgor pressure.

Root hairs increase the surface area for water absorption from the soil.

Synovial fluid lubricates the joint, reducing friction and allowing for smooth movement.

The cytoskeleton provides structural support, helps maintain cell shape, and facilitates cell movement.

The spinal cord transmits signals between the brain and the rest of the body, playing a crucial role in reflex actions.

Tendons connect muscles to bones, allowing for movement when muscles contract.

Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant.

White blood cells are crucial for the immune response, helping to defend the body against infections and foreign invaders.

The small intestine is the primary site for the absorption of nutrients from digested food.

The stomach is the primary site of protein digestion, where pepsin begins the breakdown of proteins.

The primary site of respiration in plant cells is the mitochondria, where ATP is produced through cellular respiration.

Sunlight is the primary source of energy for most ecosystems, as it drives photosynthesis in plants.

Solar energy is the primary source of energy for most ecosystems, driving photosynthesis in plants.

Solar energy is the primary source of energy for photosynthesis, driving the process.

Mutation is the primary source of genetic variation in a population, as it introduces new alleles into the gene pool, which can then be acted upon by natural selection.