1. which of the following processes transforms radiant energy to chemical energy? a.photosynthesis...
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1. Which of the following processes transforms radiant energy to chemical energy?
A. Photosynthesis
B. Respiration
C. Decomposition
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2. The decay of biomass is a great advantage for farmers because
____
• A. It provides oxygen to plants
• B. It provides nutrients to the soil
• C. It provides food to human
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3. Which organism in the food chain gets the highest amount of energy?
• A. Producers
• B. Herbivores
• C. Carnivores
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4. Which of the following contains organic compounds?
• A. Rocks
• B. Plants
• C. Sediments
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5.What element are all organic matter composed of?A. Hydrogen
B. Helium
C. Nitrogen
D. Carbon
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C6H12O6NH2CH2COOH
Fe2O3NaCl
6. How many compounds listed above are considered organic compounds?
A. 1B. 2C. 3D. 4
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7.Which of the following docarbohydrates, like the cracker shown above, become during digestion?
• A Amino acids
• B Fatty acids
• C Lipids
• D Sugars
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8.What is the most distinguishingcharacteristic of a chemical change?
• A The appearance of a substance changes.
• B A new substance is formed.
• C The change can be reversed easily.
• D The identity of the substance remains the same.
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9.Which of the following examples best reflects selective breeding?
• A The mating of two particular sheep to produce thicker wool
• B A genetic mutation in an individual snake that improves its sense of smell compared to others in its population
• C A few individuals of an extinct species live in zoos
• D Two wolf packs live in geographically separate regions
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10.What is considered to be the lowest level of organization in a multicellular organism?
• A Cell
• B Organ system
• C Tissue
• D Organ
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11.If thinking from smallest to largest, the organ level of organization comes –
• A after organ system and before organism.
• B before organisms and after organ systems.
• C before organ system and after tissue.
• D after cells and before tissue.
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12. Cells can be best defined as –
• A the start of all living things on land.
• B the smallest living units of all living things such as plants and animals.
• C found in prokaryotic organisms only.
• D found in eukaryotic organisms only.
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13. Which organelle helps to create energy within the cell?• A Mitochondria
• B Nucleus
• C Vacuole
• D Ribosomes
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14. How do birds respond when there is a lack of food, water, and shelter?
• A Reproduce
• B Hibernate
• C Hide
• D Migrate
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15. Examples of external stimuli include all of the following, except -• A sunlight.
• B hunger.
• C lack of food.
• D a loud sound.
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16. A plant relies on abiotic factors such as the Sun, water, and soil for survival. A plant will grow toward sunlight. This reaction is known as –
• A tropism.
• B gravitropism.
• C phototropism.
• D positive response.
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17. How does the student’s body respond as his heart rate increases?
• A Hunger pains
• B Decreased body temperature
• C Breathing faster
• D Vomiting
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18. Which of the following shows chemical change happening in the digestive system?
• A. food being chewed in the mouth
• B. food reacting with gastric acids in the stomach
• C. digested food moving to the small intestine
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19. When carbohydrates are broken down, they change into
_____.
• A. simple sugars
• B. larger molecules
• C. energy
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20. Which of the following requires more work?
• A. a person pushing a box on flat surface
• B. a person carrying a bag of grocery upstairs
• C. a boy sliding down the ramp
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21. What energy transformation is happening during photosynthesis ?
• A. electrical to chemical
• B. radiant to chemical
• C. chemical to nuclear
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22.
• What causes the plant B to wilt ?
• A. it has a lot of water
• B. it’s in a darks environment
• C. it lacks turgor pressure
A B
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23. Roots of plants tend to grow downward, this is due to ___.
• A. Phototropism or response to light
• B. Thigmotropism or response to touch
• C. Geotropism or response to gravity
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24. Why is earth the only planet that can support life?
• A. It’s very close to the sun
• B. It’s very far away from the sun
• C. It is the perfect distance from the sun
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26. Photosynthesis manufactures or produces________.
• A. carbon dioxide and oxygen
• B. Oxygen and water
• C. Glucose and Oxygen
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26. Which of the following is not a producer?
• A. lion
• B. grass
• C. corn
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27. What is the difference between a plant cell and an animal cell?
• A. plant cells have a vacuole and animal cells do not
• B. plant cells have a cell membrane, animal cells do not
• C. plant cells have a cell wall and chlorophyll, animal cells do not
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28. The nucleus of the cell is comparable to the __________.
• A. Brain
• B. skin
• C. kidneys
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29. What body system controls growth , metabolism and releases hormones• A. Nervous
• B. Digestive
• C. Endocrine
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30. Which of the following shows selective breeding?• A. Finches changing their beaks over
many generations
• B. Iguanas developing gills to survive in water
• C. Farmers cross pollinating plant to make a disease resistant variety
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31. The organelle in plants that is responsible for trapping sun’s radiant energy is -
• A. nucleus
• B. cell wall
• C. chloroplasts
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32. What body systems are involve in the absorption of nutrients to all
cells of the body?
• A. Skeletal and Muscular
• B. Digestive and Circulatory
• C. Endocrine and Reproductive
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33.
The peppered moth population surviving over time is due to-
A. Selective breedingB. Natural selectionC. Behavioral adaptationD. Migration