In 1838 a botanist determined that all plants are composed of cells. In 1839 anatomist Theodore

Schwann proposed that all animals are composed of cells. In 1855 a biologist propose that all living things are composed of cells. Which statement is also part of

Virchow’s cell theory?

Which of the following examples best represent the levels of organization from the least to most complex?

Which table correctly describes the functions of the cell structures listed?

A student has four microscope slides of cells from four organisms. He must match the slides of cells with the correct organism tissue listed in the table.

He observes one large vacuole in the cells on one of the slides.

Which slides is he observing?

Provided below is a levels of organization diagram.

Which of the following terms does row Z in the diagram represent?

Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps plants capture energy from sunlight?

According to the Cell Theory, which of the following statements is not correct?

The function of the structure in the plant cell is to

In the levels of organization, leaves of a plant are considered

The equation below represents a chemical reaction that occurs in living plant cells called photosynthesis in which radiant energy is transformed into chemical energy

6CO₂ + 6H₂O ______> C₆H₁₂O₆ + 6O₂

When people run long distances, their internal temperature increases. Their bodies require a way to cool down and begin the process by sweating. Which organ system is responsible for cooling the body?

A student drew the picture of a human body system shown below. The student labeled some of the organs of the system. Which is not a function of this system?

A student was outside in the schoolyard when he spotted a snake. His heart started beating quickly. Which body system is responsible for raising the heart rate when a person is scared or excited producing the fight or flight response?

When a person touches a hot stove, he immediately removes his hands in response to the hot stimulus

Hormones are chemical signals that are produced by glands and carried in the bloodstream to other parts of the body. Insulin and glucagon are hormones produced by the pancreas to control blood sugar levels. What organ system is responsible for producing hormones to control your blood sugar levels?

The diaphragm moves when you inhale and exhale allowing the lungs to fill with air. What organ system is responsible for the movement of the diaphragm when you breathe?

The organ system that controls all the

activities in the human body to maintain homeostasis is the

Calcium is an essential mineral for life. It has many functions in the body. Muscles and nerves require calcium so they can function properly. Which organ system is responsible for the storage of minerals such as calcium?

Shivering is a body response to cold

environmental temperatures. Shivering creates heat by shaking our body to try

to warm it up.

Which organ system is responsible for the shivering movement that creates heat to warm up the body?