Which cell structure contains the cell’s genetic material and controls many of the cell’s activities?
Nucleus
Which of the following is one way that carbon enters the atmosphere?
A. Through animal waste
B. Through the process of photosynthesis
C. Through carbon fixation
D. Through sediment weathering and erosion
B. Through the process of photosynthesis
Which body system transports materials Throughout the body?
A. Circulatory system
B. Respiratory system
C. Digestive system
D. Urinary system
A. Circulatory system
Longitudinal waves move through different media at different rates. Which of the followings lists the three states of matter according to how fast longitudinal waves move through matter, from slowest to fastest?
A. Solid, liquid, gas
B. Solid, gas, liquid
C. Gas, liquid, solid
D. Liquid, gas, solid
A. Solid, liquid, gas
Which group on the periodic table includes the most elements?
A. Metals
B. Nonmetals
C. Semiconductors
D. Noble gases
A. Metals
Which of the following structures is not present in animal cells?
A. Cell membrane
B. Cell wall
C. Mitochondrion
D. Nucleus
B. Cell wall
Which of these is the BEST example of heat transfer by convection?
A. A person taking a warm bath
B. Hot air rising from a furnace vent
C. A sidewalk being warmed by the sun
D. Food being heated in a microwave oven
B. Hot air rising from a furnace vent
Which two body systems coordinate the activities of all other body systems?
A. Circulatory and nervous
B. Endocrine and nervous
C. Respiratory and nervous
D. Urinary and nervous
B. Endocrine and nervous
The human hearing range is 20 - 20,000 hertz. A sound Peggy heard was measured at 15,000 hertz. Which characteristics BEST describes the sound wave that Peggy heard?
A. Fast speed
B. High frequency
C. Large amplitude
D. Long wavelength
B. High frequency
Water (H2O) is not found on the Periodic Table of the Elements because water is:
A. An atom
B. A liquid
C. A mixture
D. A compound
D. A compound
What are the basic structural units of living organisms?
cells
What type of gases trap some radiation and keep it on the Earth?
A. Gravity
B. Global warming
C. Nitrogen and Oxygen
D. Greenhouse gases
D. Greenhouse gases
When a bone is broken, which body systems would be affected?
A. Skeletal, muscular, nervous
B. Skeletal, cardiovascular, digestive
C. Skeletal, respiratory, muscular
D. Skeletal, endocrine, circulatory
A. Skeletal, muscular, nervous
A radio station broadcasts radio waves across a large area. The area is experiencing thunderstorms. Which wave property remains constant during the broadcasts?
A. Wavelength
B. Amplitude
C. Frequency
D. Speed
A.Frequency
In which group of the Periodic Table of the Elements are the noble gases located?
Group _____________
GROUP 18
When a runner sprints, their muscles require large amounts of cellular energy. Based on this information, which organelle would be more abundant in a muscle cell than a skin cell?
Mitochondria
Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is:
A. used in reproduction.
B. stored as body tissue.
C. stored as fat.
D. eliminated as heat.
D. eliminated as heat.
In humans, which organ is responsible for absorbing most of the nutrients from food after digestion?
A. The liver
B. The kidneys
C. The stomach
D. The intestines
D. The intestines
Elizabeth uses a specific type of whistle to call her dogs. The noise made by the whistle is heard by the dogs but cannot be heard by the human ear. Which statement BEST describes why humans cannot hear the sound made by the whistle?
A. The speed of the sound is too fast
B. The amplitude of the sound is too low
C. The frequency of the sound is too high
D. The wavelength of the sound is too long
C. The frequency of the sound is too high
The elements on the Periodic Table are arranged in order of increasing:
A. Mass number
B. Atomic number
C. Number of isotopes
D. Alphabetical letter
B. Atomic number
Cyanide is a poison that prevents the cell from Using oxygen. Which organelle is directly affected by cyanide?
Mitochondria
Nutrients travel through ecosystems in:
A. Energy levels
B. Trophic levels
C. Biogeochemical cycles
D. Carbon cycles
C. Biogeochemical cycles
A fever is a response to infection that helps the body to maintain homeostasis. Which body systems work together to detect and fight infection and regulate temperature?
A. Immune and circulatory
B. Respiratory and nervous
C. Immune and respiratory
D. Circulatory and respiratory
A. Immune and circulatory
A strong beam of light is directed toward a tank filled with water. What caused the beam of light to change direction?
A. Change in media
B. Change in altitude
C. Increase in pressure
D. Increase in temperature
A. Change in media
All matter is made up of particles called:
A. Cells
B. Molecules
C. Atoms
D. Compounds
C. Atoms