Ligaments connect bone to bone, providing stability to joints.

Lipids primarily serve as energy storage molecules.

Nervous tissue is responsible for the transmission of electrical impulses throughout the body, facilitating communication.

Parathyroid hormone (PTH) increases calcium levels in the blood by stimulating the release of calcium from bones and increasing calcium absorption in the intestines.

Petals are often brightly colored to attract pollinators.

The primary function of petals is to attract pollinators with their color and fragrance.

Plasma is the liquid component of blood that carries nutrients, hormones, and waste products throughout the body.

Potassium plays a crucial role in regulating water balance and osmotic pressure in plant cells.

Producers, such as plants, produce energy through photosynthesis, forming the base of the food chain.

Ribosomes are responsible for protein synthesis in the cell.

Surfactant reduces surface tension in the alveoli, preventing their collapse and making it easier for the lungs to expand during inhalation.

The Achilles tendon connects the calf muscles to the heel bone, allowing for foot movement.

The primary function of the alveoli is gas exchange, where oxygen is absorbed into the blood and carbon dioxide is released.

The cell wall provides protection and support to the cell, maintaining its shape and preventing excessive water uptake.

The primary function of the contraceptive pill is to prevent ovulation, thereby reducing the chances of pregnancy.

Petals are primarily designed to attract pollinators with their color and fragrance.

The G2 phase is primarily for preparing the cell for mitosis, including the synthesis of proteins necessary for cell division.

The genetic code determines the sequence of amino acids in proteins, thus influencing their structure and function.

The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.

Aldosterone helps regulate blood pressure by controlling sodium and water balance in the kidneys.

Cortisol is a steroid hormone that helps control the body's stress response and regulates metabolism, immune response, and blood sugar levels.

Oxytocin is primarily responsible for stimulating uterine contractions during childbirth.

The primary function of the immune system is to protect the body against diseases and infections.

The lymphatic system is responsible for transporting lymph, a fluid that contains infection-fighting white blood cells, and plays a crucial role in the immune system.

The primary function of the male reproductive system is the production of sperm, which is essential for fertilization.

The myelin sheath acts as an insulator and increases the speed of nerve impulse transmission through saltatory conduction.

Phloem is responsible for the transport of food (sugars) produced during photosynthesis from leaves to other parts of the plant.

The placenta provides oxygen and nutrients to the developing fetus and removes waste products.

The renal pelvis collects urine from the collecting ducts and transports it to the ureter.

Ribosomes are responsible for protein synthesis by translating messenger RNA into polypeptide chains.