Animal Physiology MCQs with Answers

Animal Physiology MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Animal Physiology MCQs for Preparation.

The student can clear their concepts for Animal Physiology online quiz by attempting it. Doing MCQs based Animal Physiology will help you to check your understanding and identify areas of improvement.

Animal Physiology Online MCQs with Answers

Which of the following is responsible for carrying oxygen in the blood of vertebrates?
a) Hemoglobin
b) Myoglobin
c) Erythropoietin
d) Albumin

Answer
a) Hemoglobin

Which of the following organs is responsible for the production of insulin in humans?
a) Pancreas
b) Liver
c) Kidney
d) Stomach

Answer
a) Pancreas

The process by which food is broken down into smaller molecules for absorption is known as:
a) Digestion
b) Respiration
c) Circulation
d) Excretion

Answer
a) Digestion

Which of the following is the primary organ of gas exchange in mammals?
a) Lungs
b) Gills
c) Trachea
d) Skin

Answer
a) Lungs

The hormone responsible for regulating blood sugar levels in humans is called:
a) Insulin
b) Glucagon
c) Thyroxine
d) Epinephrine

Answer
a) Insulin

The process by which waste products are removed from the body is known as:
a) Excretion
b) Digestion
c) Respiration
d) Circulation

Answer
a) Excretion

Which of the following is the largest organ in the human body?
a) Skin
b) Liver
c) Heart
d) Brain

Answer
a) Skin

The hormone responsible for flight or fight response in animals is called:
a) Epinephrine
b) Insulin
c) Estrogen
d) Testosterone

Answer
a) Epinephrine

Which of the following is the primary site of nutrient absorption in the digestive system of mammals?
a) Small intestine
b) Stomach
c) Large intestine
d) Liver

Answer
a) Small intestine

The process by which animals take in oxygen and release carbon dioxide is known as:
a) Respiration
b) Digestion
c) Circulation
d) Excretion

Answer
a) Respiration

Which of the following is responsible for the coordination and control of bodily functions in animals?
a) Nervous system
b) Endocrine system
c) Digestive system
d) Muscular system

Answer
a) Nervous system

The hormone responsible for regulating the sleep-wake cycle in humans is called:
a) Melatonin
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Melatonin

Which of the following is the primary organ responsible for filtration and excretion in vertebrates?
a) Kidney
b) Liver
c) Lung
d) Spleen

Answer
a) Kidney

The process by which animals break down complex molecules to release energy is known as:
a) Respiration
b) Digestion
c) Circulation
d) Excretion

Answer
a) Respiration

Which of the following is the primary organ of vision in vertebrates?
a) Eye
b) Ear
c) Nose
d) Tongue

Answer
a) Eye

The hormone responsible for stimulating milk production in mammals is called:
a) Prolactin
b) Insulin
c) Estrogen
d) Testosterone

Answer
a) Prolactin

Which of the following is the primary organ responsible for detoxification and metabolism of drugs in mammals?
a) Liver
b) Kidney
c) Lungs
d) Spleen

Answer
a) Liver

The process by which animals maintain a relatively stable internal environment is known as:
a) Homeostasis
b) Metabolism
c) Reproduction
d) Adaptation

Answer
a) Homeostasis

Which of the following is the primary organ responsible for producing red blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for regulating the body’s metabolism in humans is called:
a) Thyroxine
b) Insulin
c) Estrogen
d) Testosterone

Answer
a) Thyroxine

Which of the following is the primary organ responsible for hearing in vertebrates?
a) Ear
b) Eye
c) Nose
d) Tongue

Answer
a) Ear

The hormone responsible for regulating the body’s response to stress in animals is called:
a) Cortisol
b) Insulin
c) Estrogen
d) Testosterone

Answer
a) Cortisol

Which of the following is the primary organ responsible for the production of eggs in female mammals?
a) Ovary
b) Uterus
c) Fallopian tube
d) Vagina

Answer
a) Ovary

The process by which animals break down food into simpler substances for absorption is known as:
a) Digestion
b) Respiration
c) Circulation
d) Excretion

Answer
a) Digestion

Which of the following is the primary organ responsible for the production of sperm in male mammals?
a) Testes
b) Penis
c) Prostate gland
d) Epididymis

Answer
a) Testes

The hormone responsible for the development of secondary sexual characteristics in females is called:
a) Estrogen
b) Progesterone
c) Testosterone
d) Follicle-stimulating hormone

Answer
a) Estrogen

Which of the following is the primary organ responsible for the production of sperm in male mammals?
a) Testes
b) Penis
c) Prostate gland
d) Epididymis

Answer
a) Testes

The hormone responsible for the development of secondary sexual characteristics in males is called:
a) Testosterone
b) Estrogen
c) Progesterone
d) Follicle-stimulating hormone

Answer
a) Testosterone

Which of the following is the primary organ responsible for the production of eggs in female mammals?
a) Ovary
b) Uterus
c) Fallopian tube
d) Vagina

Answer
a) Ovary

The hormone responsible for regulating water balance in the body of vertebrates is called:
a) Antidiuretic hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Antidiuretic hormone

Which of the following is the primary organ responsible for the production of urine in mammals?
a) Kidney
b) Liver
c) Lung
d) Spleen

Answer
a) Kidney

The process by which animals convert food into energy for cellular activities is known as:
a) Metabolism
b) Digestion
c) Respiration
d) Excretion

Answer
a) Metabolism

Which of the following is the primary organ responsible for the detection of odor in vertebrates?
a) Nose
b) Eye
c) Ear
d) Tongue

Answer
a) Nose

The hormone responsible for the regulation of blood calcium levels in vertebrates is called:
a) Parathyroid hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Parathyroid hormone

Which of the following is the primary organ responsible for the production of bile in mammals?
a) Liver
b) Kidney
c) Spleen
d) Gallbladder

Answer
a) Liver

The hormone responsible for the regulation of body temperature in mammals is called:
a) Thyroxine
b) Insulin
c) Estrogen
d) Testosterone

Answer
a) Thyroxine

Which of the following is the primary organ responsible for the regulation of blood sugar levels in vertebrates?
a) Pancreas
b) Liver
c) Kidney
d) Stomach

Answer
a) Pancreas

The hormone responsible for the regulation of blood pressure in vertebrates is called:
a) Renin
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Renin

Which of the following is the primary organ responsible for the production of red blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of sodium and potassium balance in vertebrates is called:
a) Aldosterone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Aldosterone

Which of the following is the primary organ responsible for the production of white blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of body water balance in vertebrates is called:
a) Antidiuretic hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Antidiuretic hormone

Which of the following is the primary organ responsible for the production of bile in mammals?
a) Liver
b) Kidney
c) Spleen
d) Gallbladder

Answer
a) Liver

The hormone responsible for the regulation of blood calcium levels in vertebrates is called:
a) Parathyroid hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Parathyroid hormone

Which of the following is the primary organ responsible for the regulation of body temperature in mammals?
a) Hypothalamus
b) Liver
c) Kidney
d) Skin

Answer
a) Hypothalamus

The hormone responsible for the regulation of blood pressure in vertebrates is called:
a) Renin
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Renin

Which of the following is the primary organ responsible for the production of red blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of sodium and potassium balance in vertebrates is called:
a) Aldosterone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Aldosterone

Which of the following is the primary organ responsible for the production of white blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of body water balance in vertebrates is called:
a) Antidiuretic hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Antidiuretic hormone

Which of the following is the primary organ responsible for the production of bile in mammals?
a) Liver
b) Kidney
c) Spleen
d) Gallbladder

Answer
a) Liver

The hormone responsible for the regulation of blood calcium levels in vertebrates is called:
a) Parathyroid hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Parathyroid hormone

Which of the following is the primary organ responsible for the regulation of body temperature in mammals?
a) Hypothalamus
b) Liver
c) Kidney
d) Skin

Answer
a) Hypothalamus

The hormone responsible for the regulation of blood pressure in vertebrates is called:
a) Renin
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Renin

Which of the following is the primary organ responsible for the production of red blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of sodium and potassium balance in vertebrates is called:
a) Aldosterone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Aldosterone

Which of the following is the primary organ responsible for the production of white blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of body water balance in vertebrates is called:
a) Antidiuretic hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Antidiuretic hormone

Which of the following is the primary organ responsible for the production of bile in mammals?
a) Liver
b) Kidney
c) Spleen
d) Gallbladder

Answer
a) Liver

The hormone responsible for the regulation of blood calcium levels in vertebrates is called:
a) Parathyroid hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Parathyroid hormone

Which of the following is the primary organ responsible for the regulation of body temperature in mammals?
a) Hypothalamus
b) Liver
c) Kidney
d) Skin

Answer
a) Hypothalamus

The hormone responsible for the regulation of blood pressure in vertebrates is called:
a) Renin
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Renin

Which of the following is the primary organ responsible for the production of red blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of sodium and potassium balance in vertebrates is called:
a) Aldosterone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Aldosterone

Which of the following is the primary organ responsible for the production of white blood cells in mammals?
a) Bone marrow
b) Spleen
c) Thymus
d) Lymph nodes

Answer
a) Bone marrow

The hormone responsible for the regulation of body water balance in vertebrates is called:
a) Antidiuretic hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Antidiuretic hormone

Which of the following is the primary organ responsible for the production of bile in mammals?
a) Liver
b) Kidney
c) Spleen
d) Gallbladder

Answer
a) Liver

The hormone responsible for the regulation of blood calcium levels in vertebrates is called:
a) Parathyroid hormone
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Parathyroid hormone

Which of the following is the primary organ responsible for the regulation of body temperature in mammals?
a) Hypothalamus
b) Liver
c) Kidney
d) Skin

Answer
a) Hypothalamus

The hormone responsible for the regulation of blood pressure in vertebrates is called:
a) Renin
b) Insulin
c) Thyroxine
d) Estrogen

Answer
a) Renin

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