Trypsin is a pancreatic enzyme that helps in the digestion of proteins in the small intestine.

Trypsin is a proteolytic enzyme secreted by the pancreas that digests proteins in the small intestine.

Oxygen is released as a byproduct of photosynthesis during the light-dependent reactions.

Carbon dioxide levels in the blood are the primary factor that regulates the rate of breathing.

Oxygen is released as a byproduct of photosynthesis during the light-dependent reactions.

Carbon dioxide is released as a byproduct during the process of respiration in plants.

The pituitary gland is often referred to as the 'master gland' because it regulates the functions of other endocrine glands.

Plants are known for being autotrophic as they can produce their own food through photosynthesis.

Archaebacteria are known for their ability to thrive in extreme environments.

Pteridophytes are the first group of plants to develop vascular tissues, which help in the transport of water and nutrients.

Auxins are primarily responsible for maintaining apical dominance by inhibiting the growth of lateral buds.

Ethylene is the hormone that plays a key role in the ripening of fruits.

Auxins play a crucial role in maintaining apical dominance by inhibiting the growth of lateral buds.

Parathyroid hormone (PTH) is responsible for increasing blood calcium levels by promoting calcium release from bones and increasing calcium absorption in the intestines.

Abscisic acid is involved in the regulation of stomatal closure during water stress to prevent water loss.

Progesterone is a hormone that plays a key role in regulating the menstrual cycle and maintaining pregnancy.

Aldosterone is a hormone that helps regulate water balance by promoting sodium retention in the kidneys, which in turn affects water retention.

Abscisic acid plays a key role in closing stomata during water stress, thus regulating water loss.

Antidiuretic hormone (ADH), also known as vasopressin, plays a key role in regulating water balance by promoting water reabsorption in the kidneys.

Abscisic acid plays a crucial role in regulating water loss by causing stomatal closure during water stress.

Abscisic acid plays a crucial role in helping plants respond to drought stress by closing stomata.

Auxins are known to promote cell elongation by loosening the cell walls, allowing cells to expand.

Estrogen plays a crucial role in regulating the menstrual cycle, along with progesterone.

Epinephrine (adrenaline) is the primary hormone responsible for the fight-or-flight response, preparing the body for quick action.

Thyroxine is produced by the thyroid gland and plays a crucial role in regulating metabolism.

Adrenaline (epinephrine) is the hormone that prepares the body for a 'fight or flight' response during stressful situations.

Testosterone is the hormone responsible for the development of secondary sexual characteristics in males, such as increased muscle mass and body hair.

Thyroxine (T4) is a hormone produced by the thyroid gland that plays a crucial role in regulating metabolism and energy levels.

Epinephrine, also known as adrenaline, is secreted by the adrenal medulla and is involved in the body's fight-or-flight response.

Insulin is secreted by the pancreas and is responsible for lowering blood glucose levels by facilitating glucose uptake by cells.