Digestion, Circulation, Respiratory, Excretory and Reproduction Schoolnet Practice

The skin, lungs, and kidneys work together to A. help eliminate body wastes. B. help blood circulate. C. aid in digestion. D. aid in respiration.

help eliminate body wastes.

Urine passes through this structure as it is leaves the body. A. ureters B. kidneys C. bladder D. urethra

urethra

Which best describes the function of the small intestine? A. oxygenation of tissue B. excretion of toxic wastes C. transportation of blood cells D. digestion and absorption of food

digestion and absorption of food

Peristalsis helps move nutrients through parts of the body by using wavelike contractions. In which system is the function used? A. circulatory B.digestive C. endocrine D. nervous

digestive

The hormone produced by the ovaries in the female that controls the development of physical features in women. A. menstruation B. testosterone C. estrogen D. testes

estrogen

Which body system is most responsible for the removal of waste? A. skeletal system B. nervous system C. muscular system D. excretory system

excretory system

What is the primary function of white blood cells in humans? A. carry oxygen B. fight disease C. grow tissues D. remove waste

fight disease

Which body system is directly threatened when bacteria infect the lungs? A. muscular B. nervous C. respiratory D. excretory

respiratory

Oxygen-rich blood returns from the lungs to the heart. Which two systems are most directly involved in this process? A. excretory and digestive B. circulatory and excretory C. digestive and respiratory D. respiratory and circulatory

respiratory and circulatory

The male reproductive system is specialized to produce A. sperm and estrogen B. eggs and sperm C. eggs and testosterone D. sperm and testosterone

sperm and testosterone

The heart is the major organ of the circulatory system. Which part of the body is responsible for delivering de-oxygenated blood to the heart? A. arteries B. capillaries C. valves D. veins

veins

Which cells help to destroy pathogens such as bacteria that enter the human body? A. red blood cells B. liver cells C. white blood cells D. brain cells

white blood cells

Karen was reading a book about kidney system functions. Which statement did she most likely read that relates specifically to the kidney? A. A small cut on the skin takes about 120 seconds to clot. B. Each day about 5.5 liters of blood are circulated through an adult body. C. Each day about 1.25 liters of waste products are removed from the blood. D. Blood completely circulates through the body in about 20 seconds.

Each day about 1.25 liters of waste products are removed from the blood.

Antonio notices that his heart beats faster than usual when he is exercising. Which function does the circulatory system provide when he is exercising? A. It provides fewer nutrients for brain activity. B. It lowers blood pressure to maintain equilibrium. C. It moves more waste to the skin for body cooling. D. It improves blood flow to supply cells with more oxygen.

It improves blood flow to supply cells with more oxygen.

What statement describes what happens to the carbon dioxide waste produced by a developing baby during pregnancy? A. It is carried by the umbilical cord to the placenta and then to the mother's blood. B. It is released from the fetus by its breathing and then is absorbed by the placenta. C. It is released through the fetal urine and then exits through the umbilical cord. D. It is carried through shared blood vessels and then to the mother's lungs.

It is carried by the umbilical cord to the placenta and then to the mother's blood.

Which statement describes how the umbilical cord supports a developing fetus? A. It provides a protective barrier between the mother and the fetus. B. It keeps the fetus inside the mother until birth. C. It provides a navel when the baby is born. D. It supplies oxygen and nutrients to the fetu

It supplies oxygen and nutrients to the fetus

Which of these stages in digestion is classified as a physical change? A. Large drops of fat are emulsified into small drops of fat. B. Complex carbohydrates are converted to galactose. C. Lactose is converted to glucose and galactose. D. Protein is broken down into amino acids. more

Large drops of fat are emulsified into small drops of fat.

The human body temperature is relatively constant. Which is a feedback mechanism that helps the human body maintain its normal temperature in a cold environment? A. Water is released from the skin. B. Muscles shake in small movements. C. The rate of heart beats slows. D. The lungs take in additional air.

Muscles shake in small movements.

The human body is organized into systems that carry out all functions by working together. Which activity in the body most closely describes a relationship between the circulatory system and the digestive system? A. Nutrients are absorbed into the bloodstream. B. Cells make antibodies in response to a virus. C. The kidneys remove harmful wastes from the blood. D. Red blood cells exchange carbon dioxide for oxygen.

Nutrients are absorbed into the bloodstream.

Lucy is traveling to the top of Pike's Peak. The elevation is 14,000 feet. At the base, her respiration rate is 12 breaths per minute. At the top of Pike's Peak, her respiration rate increases to 20 breaths per minute. Why does Lucy's respiration rate most likely increase at the higher elevation? A. Her body is not able to make sugar as efficiently from the oxygen and water she absorbs. B. The lower density air requires her to breathe more often to get the oxygen she needs. C. The number of enzymes increase to break down proteins into amino acids. D. Oxygen delivery to cells increases due to increased metabolic rates.

The lower density air requires her to breathe more often to get the oxygen she needs.

A mouse's rate of carbon dioxide output increased. Which of the following most likely happened? A. The mouse went to sleep. B. The mouse ate some food. C. The mouse started running D. The mouse detected an odor.

The mouse started running.

What is the main relationship between the trachea, bronchioles, and alveoli? A. They work together to transport nutrients. B. They work together to regulate body temperature. C.They work together to store fluids to prevent dehydration. D. They work together to maintain the oxygen level in the blood.

They work together to maintain the oxygen level in the blood.

Plants have special tissues that transport food, water, and minerals throughout the plant. What are these tissues similar to in animals? A. stomach and intestines B. spinal cord and brain C. arteries and veins D. kidneys and liver

arteries and veins

Which of the following is a function of the digestive system of the human body? A. carrying oxygen to the lungs B. sending signals from the brain to the spinal cord C. breaking down food into nutrients D. providing support for the body

breaking down food into nutrients

One function of the circulatory system is to carry cellular nutrients to the body. Which part of the circulatory system is responsible for exchanging nutrients and wastes? A. arteries B. capillaries C. heart D. veins

capillaries

Noah studied different systems in the human body. Which best describes a function of veins in the circulatory system? A. carrying blood from the body to the heart B. supplying nutrients from the intestines to the body C. carrying carbon dioxide from the body to the lungs D. passing waste materials from the blood to outside the body

carrying blood from the body to the heart

Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing A. digestion. B. excretion. C. secretion. D. circulation.

circulation.

The digestive system breaks food into simple substances that the body can use. What system carries these simple substances from the digestive system to other parts of the body? A. circulatory B. nervous C. respiratory D. skeletal

circulatory

Which two body systems are involved in inhaling oxygen and exhaling carbon dioxide? A. endocrine and skeletal B. excretory and nervous C. circulatory and respiratory D. digestive and reproductive

circulatory and respiratory

The body is made up of many systems that interact with one another. For example, the skeletal system and the muscular system work together to help the body move. Which system works with the respiratory system to distribute oxygen to the body? A. muscular system B. digestive system C. lymphatic system D. circulatory

circulatory system

The primary functions of the digestive system are to break down food, absorb nutrients and excrete wastes. Once food is absorbed, what system is responsible for carrying the nutrients to the body cells? A. respiratory system B. circulatory system C. nervous system D. skeletal system

circulatory system

Doctors have determined that each of these factors could cause heart disease in humans except A. genes that code for heart defects. B. infections that damage the heart muscle. C. other diseases that cause the heart to wear out. D. intense exercise that increases the heart rate.

intense exercise that increases the heart rate.

Eating food that is undercooked can lead to a disease that affects the digestive system. Which body part is directly affected by the disease? A. intestines B. arteries C. nerves D. sinuses

intestines

These excretory organs are reponsible for filtering waste products from the blood. A. lungs B. skin C. large intestine (colon) D. kidneys

kidneys

Warm-blooded animals need to process foods quickly in order to obtain energy contained in food. Which feature of a digestive system would most likely provide the quickest access to energy by quickly absorbing particles? A. a separate large intestine for the intake of water B. large, flat teeth for grinding food into small particles C. long small intestines with many folds to increase surface area D. a stomach which secretes hydrochloric acid to break bonds of large fat molecules

long small intestines with many folds to increase surface area

Which organ is part of the respiratory system? A. stomach B. lungs C .spinal cord D. large intestines

lungs

The human body temperature is normally 98.6°F. As a person exercises, the body temperature starts to increase. As a result of the increased body temperature, the perspiration process begins to cool the body. Which best describes what the body is doing when it perspires? A. increasing osmosis B. reducing transpiration C. controlling metabolism D. maintaining homeostasis

maintaining homeostasis

If an egg is not fertilized, the egg and the lining of the uterus break down. Extra blood and tissue pass out of the body through the vagina in a process called this? A. estrogenation B. ovulation C. menstruation D. fertilization

menstruation

The filtering units inside the kidneys are called? A. nephrons B. urethra C. bladder D. urethra

nephrons

Which of these structures produce female gametes in humans? A. ovaries (ovum-singular) B. fallopian tubes (oviducts) C. uterus D. vagina

ovaries (ovum-singular)

When an egg is released from the ovary into the fallopian tubes (oviducts) during the menstrual cycle, it is called? A. menstruation B. estrogen C. testosterone D. ovulation

ovulation

What is the primary job of red blood cells? A. transport oxygen B. remove waste C. fight disease D. allow reproduction

oxygen

The role of the female reproductive system is to do this. A. only to produce eggs B. produce eggs and if fertilized, to nourish a developing baby until its birth. C. produce sperm and if fertilized, to nourish a developing baby until its birth. D. produce eggs and have a monthly menstruation

produce eggs and if fertilized, to nourish a developing baby until its birth.

The nose, mouth, and diaphragm are parts of which body system? A. digestive B. muscular C. circulatory D. respiratory

respiratory

During digestion, strong acids are added to food to help break down the food chemically. Into which organ are most of these acids added? A. small intestine B. large intestine C. gallbladder D. stomach

stomach

Which of these structures produces male gametes in humans? A. testes B. ovaries C. scrotum D. fallopian tube

testes

Which of these is the main function of the vomiting reflex? A. to rid the body of wastes B. to expel food that has no nutritional value C. to empty the stomach when it has too much food in it D. to remove toxic material from the stomach before it is absorbed

to remove toxic material from the stomach before it is absorbed

Why is it important for the walls of an artery to be thicker and more elastic? A. to reduce cholesterol levels in the blood B. to resist the higher pressure from the blood C. to stop the blood from going into the capillaries D. to prevent blood from flowing backwards in the vessels

to resist the higher pressure from the blood

In the human body, the circulatory system works with the respiratory system by A. producing red blood cells. B. transporting oxygen to organs. C. providing nutrients to muscles. D. controlling the movement of the lungs.

transporting oxygen to organs.