Organic Compounds
Work
Genetics
Plant and Animal Cells
8th Grade
100
What do Organic Compounds contain?
Contains carbon and (hydrogen, oxygen, phosphorus, nitrogen, or sulfur)
100
What is work?
where force moves an object over a distance or w=force x distance
100
When extended drought caused the plants with small seeds to die off, Galapagos Medium Ground Finches had to adapt to a new diet of bigger sized seeds. What is this type of adaptation over time called? A) Sustainability B) Natural selection C) Biodiversification D) Selective breeding
B) Natural selection
100
When comparing a plant cell to an animal cell, which structure is only found in a plant cell? A) Nucleus B) Cell membrane C) Cell wall D) Mitochondrion
C) Cell wall
100
What is the measurement of the force of gravity on an object?
Weight
200
Which element is found in abundance, both in the human body and in the Earth? A) oxygen B) carbon C) calcium D) silicon
A) oxygen
200
What evidence proves that no work is being done on an object? A) an object remains stationary B) an object moves C) an object has mass D) an object is rigid
A) an object remains stationary
200
Most domesticated animals have been bred for specific, favorable traits. Dairy cows are bred for maximum milk production, while dogs are bred for size and color, among other characteristics. The process of humans controlling the breeding of organisms is known as— A) natural selection B) selective breeding C) manipulative reproduction D) sheltered breeding
B) selective breeding
200
Cytoplasm is found in – A) plant cells only. B) animal cells only. C) both plant cells and animal cells. D) neither plant cells and animal cells.
C) both plant cells and animal cells.
200
What is needed for hurricanes to form?
Warm water
300
Which element is found in abundance in the human body, but is NOT found in abundance in the Earth? A) oxygen B) carbon C) calcium D) silicon
B) carbon
300
A batter walks up to home plate with his bat, stands with his bat in the air, swings his bat, and makes contact with the ball. In which part of this situation is NO work occurring? A) batter walks up to home plate with his bat B) batter stands with his bat in the air C) batter swings the bat D) batter makes contact with the ball
B) batter stands with his bat in the air
300
Which of the following terms refers to the process of mating members of the same litter to maintain desirable traits? A) Selective breeding B) Hybridization C) Outbreeding D) Natural Selection
A) Selective breeding
300
What process, essential to plant life, is the primary function of chloroplasts? A) Photosynthesis B) DNA Replication C) Respiration D) Growth
A) Photosynthesis
300
What occurs during the convection current?
warn airs rises and cold air sinks in a cycle
400
Which of the following contains the four most abundant elements found in living cells? A) carbon, oxygen, nitrogen, sulfur B) carbon, oxygen, hydrogen, nitrogen C) carbon, oxygen, sulfur, phosphorus D) carbon, sulfur, hydrogen, magnesium
B) carbon, oxygen, hydrogen, nitrogen
400
How much work is done if a 2 N box is moved 4 m? A) .5 Nm B) 2 Nm C) 4 Nm D) 8 Nm
D) 8 Nm
400
Breeders have developed a variety of chicken that has no feathers. Which of the following methods were most likely used to produce this variety? A) Grafting and Hybridization B) Regeneration and Incubation C) Artificial selection and Inbreeding D) Vegetative propagation and Binary fission
C) Artificial selection and Inbreeding
400
How are chloroplasts in plant cells and mitochondrion in animal cells similar? A) Both are the energy factories. B) Both are used for storage of nutrients. C) Both are the control centers of the cell. D) Both are transporters of waste materials.
A) Both are the energy factories
400
is the equation balanced? FeS + HCl -> FeCl2 + H2S
No
500
What do carbohydrates consist of? A) Carbon and Sulfur dioxide B) Carbon and Hydrogen C) Carbon and Amino Acids D) Carbon and Potassium
B) Carbon and Hydrogen
500
In which situation is work done? a. A waiter who I standing up while holding a tray of food above his head b. A parent who is pushing a child forward c. A mail carrier who is walking forward while carrying a box d. A soccer player whose foot is resting atop a soccer ball
b. A parent who is pushing a child forward
500
Some dairy farmers want to increase of milk produced by their cows. How can the farmers use selective breeding to increase milk production? A. By increasing the age of cows that are bred B. By choosing cows that high milk producers C. By limiting the number of offspring per cow D. By choosing cows that can produce milk after eating the most food
B. By choosing cows that high milk producers
500
In what part of a cell is hereditary information found? A) Chloroplasts B) Nucleus C) Cytoplasm D) Membranes
B) Nucleus
500
Flourine has 9 protons, 10 neutrons, and 9 electrons. What is the atomic number?
Atomic number is 9
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