This basic plant part transports water and nutrients from the roots to the rest of the plant.
What is the stem?
The largest organ in the human body by surface area is this.
What is the skin?
The male reproductive organ responsible for producing and storing sperm is called this.
What are the testes?
This type of muscle is responsible for involuntary movements such as those of the digestive system.
What is smooth muscle?
This hormone is responsible for regulating blood sugar levels by facilitating the uptake of glucose into cells.
What is insulin?
The process by which plants lose water vapor through small pores in their leaves is called this.
What is transpiration?
The part of the brain that controls basic life functions such as breathing and heart rate is called this.
What is the brainstem?
During pregnancy, this organ provides oxygen and nutrients to the developing fetus and removes waste products from its blood.
What is the placenta?
The part of the digestive system responsible for breaking down food into smaller molecules for absorption is called this.
What is the stomach?
This system in the body is responsible for protecting against pathogens and foreign invaders.
What is the immune system?
This type of tissue in plants conducts sugars and other metabolic products downward from the leaves.
What is phloem?
The process of egg release from the ovary is known as this.
What is ovulation?
The female reproductive organ where fertilization typically occurs is called this.
What is the fallopian tube?
This gland in the endocrine system is responsible for regulating metabolism and energy production.
What is the thyroid gland?
This process involves the maintenance of stable internal conditions despite external changes.
What is homeostasis?
The process by which a plant grows from a seed into a seedling is called this.
What is germination?
This hormone is responsible for the development and maintenance of male secondary sexual characteristics.
What is testosterone?
This stage of labor involves the expulsion of the baby from the mother's uterus.
What is delivery?
This heart chamber is the first to receive deoxygenated blood from the body.
What is the right atrium?
This organ system is responsible for producing and circulating hormones throughout the body.
What is the endocrine system?
This gas is essential for photosynthesis in plants.
What is carbon dioxide?
This organ is responsible for filtering waste products from the blood and producing urine.
What are the kidneys?
The name of a single cell that results from the fusing of a sperm cell with an egg cell.
What is a zygote?
The molecule in red blood cells that transports oxygen.
What is hemoglobin?
The small gap between neurons where a signal is passed from one neuron to the next.
What is a synapse?