Sepals protect the flower bud before it opens and can also support the flower.

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.

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

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

The small intestine is the primary site for the absorption of nutrients due to its large surface area.

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.

The primary source of energy for the Earth's climate system is the Sun.

The primary source of energy for the Earth is solar energy, which drives weather, climate, and photosynthesis.

Carbohydrates are the primary source of energy in a balanced diet, providing 4 calories per gram.

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.

Mutations are the primary source of genetic variation, providing the raw material for evolution.

Indirect Taxes are the primary source of revenue for the Indian government.

Industrial processes, especially those involving the burning of fossil fuels, are the primary source of sulfur dioxide emissions.

All of the listed options contribute significantly to water pollution, affecting aquatic life and human health.

In a solution of acetic acid, the primary species present is the undissociated acetic acid (CH3COOH), along with some dissociated ions.

In a solution of sodium acetate, the acetate ion (CH3COO-) is the primary species that affects the pH.

The outer core is in a liquid state, composed mainly of molten iron and nickel.

Solids have a definite shape and volume due to closely packed particles.

Glycogen is the primary storage form of carbohydrates in animals.

Cellulose is the primary structural component of plant cell walls, providing rigidity and strength.

The primary structure of a polymer is determined by the arrangement of its monomers.

The primary structure of a protein is determined by the sequence of amino acids linked by peptide bonds.

The primary structure of a protein refers to the linear sequence of amino acids in the polypeptide chain.