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Q 1/30
Score 0
Which example shows a chemical change to food during digestion?
120
food churning in the stomach
enzymes breaking down food
food moving through the intestines
teeth chewing food
Q 2/30
Score 0
The human stomach is protected from self-digestion by a layer of
120
muscle
bile
mucus
white blood cells
30 questions
Q.
Which example shows a chemical change to food during digestion?
1
120 sec
Q.
The human stomach is protected from self-digestion by a layer of
2
120 sec
Q.
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?
3
120 sec
Q.
If someone has her gall bladder removed, how is this MOST likely to affect her?
4
120 sec
Q.
Which do mitochondria supply to an animal cell?
5
120 sec
Q.
Which is a feedback mechanism the human body uses to maintain homeostasis?
6
120 sec
Q.
Which single-celled organism uses pseudopods as a means of locomotion
and capturing prey?
7
120 sec
Q.
The human body has different levels of organization. In the structural organization of the central nervous system, which is an organ?
8
120 sec
Q.
An athlete is running a race. The athlete’s body needs energy. Which type of organelle in the athlete’s cells supplies the energy for cellular function?
9
120 sec
Q.
Students investigated changes in heart rate before and during exercise. The heart rate of a student was measured at three different times, as shown in the table. Which statement BEST explains the increase in heart rate?
10
120 sec
Q.
Plants have cells, tissues, organs, and systems that allow them to function as complete
organisms. Which parts of a plant function as an organ?
11
120 sec
Q.
Which best describes the function of the cell membrane?
12
120 sec
Q.
Which of these must be absorbed by animal cells in order to grow?
13
120 sec
Q.
Arteries and veins are two important parts of the circulatory system. What is the relationship between arteries and veins?
14
120 sec
Q.
In the human body, the circulatory system works with the respiratory system by
15
120 sec
Q.
Which is the primary source of genetic information found in a cell?
16
120 sec
Q.
Which of these could only be found inside a plant cell?
17
120 sec
Q.
Eating food that is undercooked can lead to a disease that affects the digestive system. Which body part is directly affected by the disease?
18
120 sec
Q.
The structures in the bodies of many organisms have levels of organization that help the body to carry out life processes. Which list correctly shows how these levels are organized from the simplest to the most complex?
19
120 sec
Q.
How do a paramecium and an amoeba obtain food to live?
20
120 sec
Q.
Which statement describes how muscles work to allow a person to extend an arm from a curled position by straightening the elbow?
21
120 sec
Q.
Which two organisms contain chloroplasts and eyespots?
22
120 sec
Q.
Which best describes the function of the cell wall in plant cells?
23
120 sec
Q.
Which function makes a plant cell different from an animal cell?
24
120 sec
Q.
Are the cells of a tiny mouse about the same size as the cells of a huge elephant? Why?
25
120 sec
Q.
Which body system is responsible for breaking down food into molecules that it absorbs?
26
120 sec
Q.
Which system supports the body, protects internal organs, and makes blood cells?
27
120 sec
Q.
The table describes four different organ systems in the human body. The organs in System 3 are MOST likely part of the
28
120 sec
Q.
What is a job of white blood cells?
29
120 sec
Q.
The diagram shows a video game control stick. The control stick rotates to steer activity within the game. Which joint moves in the same way as the control stick?
