If a piece of bread is left out in the air for several days, there is a good chance that mold will appear on the bread. Where does the bread mold come from?

If a person cuts his or her finger, eventually the cut will heal, and the skin will be whole again. How does the gap created by the cut get filled?

When blood flow is gone from the extremities for too long, the cells start to die. Depending on the severity of the damage, new cells will either replace the old or that part of the body that is lost to frost bite. Which system was MOST responsible for Randy’s frostbite?

Those that knew Randy stated he should not have gone treasure hunting because he had a premedical breathing condition known as asthma from a long life of smoking. Asthma causes severe difficulties in breathing when under stress or mild exercise and can lead to death or serious injury without treatment. If Asthma was indeed the reason for Randy’s death instead of frost bite, which system would be MOST responsible?

Blood pressure typically rises during the winter due to constrictions in blood flow, which can lead to an increase in heart attacks, strokes, and other cardiovascular causes of death. Scientists at the Oregon University have uncovered a system that tells the body when to perform one of its most basic defenses against the cold: Shivering. The scientists have discovered the brains wiring system, which take temperature information from the skin which tells the brain when the musculoskeletal system should start shivering. Which system was primarily responsible for initiating Randy’s shivering if frostbite was his cause of death?

The _______________system was triggered when Randy’s blood flow was limited in response to the severe cold temperatures, this led to his brain to send impulses through the ______________ system to constrict blood vessels in the circulatory system and cause shivering. This is the body’s first line of defense in response to Frost bite.

Which two body systems make movement possible?

Which process best describes respiration

Bones are the major part of the body’s skeletal system. What is one of the main functions of bones?

The failure of body systems can disrupt homeostasis. The failure of which body system can cause an immediate problem?

How can the circulatory and digestive systems work together?

Organ systems work together to meet the needs of the human body. How is the skeletal system related to the nervous system?

Which phrase defines the term homeostasis?

You and your classmate are discussing different organs and organ systems within the human body. Your friend states that the excretory system includes multiple organs, and one of those organs is the lungs. You argue that the lungs can’t possibly be in the excretory system since it is part of the respiratory system. Which of the following choices would be the best statement that your friend would use to justify why the lungs help keep homeostasis for the excretory system?

How do your respiratory and circulatory systems attempt to maintain homeostasis during exercise?

In order to maintain homeostasis, the systems of the human body work together to keep a constant internal temperature. Which of the following best describes how the human body responds in a cold environment?

Food gives the body energy, which helps the body maintain homeostasis. In the morning, an athlete eats a nutritious breakfast to get energy to exercise. What are the main organ systems involved in the process of food from the athlete’s breakfast being broken down into nutrients and then delivered to the cells?

The skin helps regulate body temperature by perspiration, which allows excess heat to leave the body. If you lost the ability to sweat, what could happen to you if you were running a marathon?

5. scientist added bacteria and a nutrient medium that could support the growth of the bacteria to a sterilized petri dish. No other materials were added. The graph models growth of the bacteria over time. Which of these most likely explains why the bacterial population stopped growing?

If a piece of bread is left out in the air for several days, there is a good chance that mold will appear on the bread. Where does the bread mold come from?

If a person cuts his or her finger, eventually the cut will heal, and the skin will be whole again. How does the gap created by the cut get filled?

A museum designer is creating  a display of animals that share similar traits. The exhibit features these three animals.

Based on your knowledge of cell theory and the information in the museum display, what characteristic is shared by the blood of all three animals?

A museum designer is creating  a display of animals that share similar traits. The exhibit features these three animals.

Imagine you are studying homeostasis in blood cells from the narwhal. You are looking for signs that the blood cells are in homeostasis. Which of the following events could be used to demonstrate that the cells are in homeostasis?

A museum designer is creating  a display of animals that share similar traits. The exhibit features these three animals.

As new information is discovered, scientific knowledge is open to change.  Which of the following would NOT be a result of new scientific knowledge?

The sizes of various biological structures are shown in this diagram. Some can be seen with a light microscope. Others are so small that other technology is required to visualize them.

What would be even smaller than the smallest item in this diagram?

The sizes of various biological structures are shown in this diagram. Some can be seen with a light microscope. Others are so small that other technology is required to visualize them.

What is one of the biggest reasons that a virus is NOT considered alive?  

Adrian is trying to find evidence that supports one part of the cell theory. It states that all cells come from preexisting cells. He examines two slides under a microscope. Slide X is made up of onion cells from a growing root tip, and Slide Y is a sample of pond water containing moving protists called paramecia.

Which observations best support that all cells come from preexisting cells?

A student is investigating cells and cell theory. The student looks at six different living and nonliving samples under a microscope.

Which of the following is not a component of cell theory?

1.     All cells come from preexisting cells.

2.     All living things are composed of cells or a single cell.

3.     All cells contain a nucleus.

A student is investigating cells and cell theory. The student looks at six different living and nonliving samples under a microscope.

Which statement about cells is true?

A student is investigating cells and cell theory. The student looks at six different living and nonliving samples under a microscope.

The student realizes that two of the slides contain living organisms. What is the key difference between these slides and the slides that do not contain living organisms?

Which of the following correctly pairs a structure in a plant cell with its description?

Latoya adds sugar molecules to the cells she is studying. The cell will produce energy by the process of respiration. Toward which organelle is Latoya likely to find the sugar molecules moving?

The diagram below shows parts of a cell. Which organelle stores the information that determines an individual’s blood type?

Which of the following is a major difference between plant and animal cells?

A cell can be seen by looking through a microscope. Seeing which of these organelles would let you know that you are looking at a plant cell?

Which table on your worksheet describes the functions of the cell structures listed?

In an animal cell, a muscle cell requires more energy than other cells. Because of this, you would expect to find more of which type of organelle in muscle cells than in other cells?

The presence of which organelles causes many plants to appear green?

A plant stem allows the plant to grow tall. What part of the cell enables it to stand up straight?