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- Q 1/21Score 0
How were two traits altered that resulted in modern day corn plants?
29The number of branches decreased, but the amount of edible food increased.
The number of branches and the number of flowers increased.
The number of flowers decreased, but the number of branches increased.
The number of branches and the amount of edible food decreased.
- Q1
How were two traits altered that resulted in modern day corn plants?
The number of branches decreased, but the amount of edible food increased.
The number of branches and the number of flowers increased.
The number of flowers decreased, but the number of branches increased.
The number of branches and the amount of edible food decreased.
30sMS-LS4-5 - Q2
The reaction for the burning of propane shows a conservation of matter because
water is produced during the reaction
energy is produced during the reaction
the mass of the water and carbon dioxide equals the mass of the propane and oxygen
the volume of the water and carbon dioxide equals the volume of the propane and oxygen
30sMS-PS1-5 - Q3
How does the use of bluebird boxes on farms minimize the impact of pesticides on the environment?
Bluebirds living in bluebird boxes decrease the number of insects on farms with minimal health risks to humans.
Bluebirds living in bluebird boxes pollinate the plants that would otherwise be pollinated with pesticides.
Bluebird boxes are more expensive to buy and maintain than buying and using pesticides.
Bluebird boxes attract other types of birds to the area which discourage insects from eating crops.
30sMS-ESS3-3 - Q4
Which table shows a correct interaction that the bluebird has with another organism in this food web?
30sMS-LS2-2 - Q5
Natural selection has caused a genetic trait of Sherpas to change over a long period of time by
decreasing the frequency of a favorable trait through asexual reproduction
decreasing the frequency of a favorable trait through sexual reproduction
increasing the frequency of a favorable trait through asexual reproduction
increasing the frequency of a favorable trait through sexual reproduction
30sMS-LS4-4 - Q6
Which organelle is represented in the model and is correctly paired with its function for the cell as a whole?
nucleus; control center of the cell
chloroplast; captures energy to make food
mitochondrion; releases energy from food
cell membrane; allows food to enter and wastes to leave the cell
30sMS-LS1-2 - Q7
The graph indicates that the design solution of adding the Bt gene into corn plants helps protect the stability of an ecosystem by
keeping the amount of insecticide used constant
keeping the amount of corn grown constant
decreasing the amount of insecticide used
decreasing the amount of Bt corn grown
30sMS-ETS1-2 - Q8Which sequence identifies the levels of organization of body structures in a human from simplest to most complex?organ system → cell → tissue → organtissue → organ → organ system → cellcell → tissue → organ → organ systemcell → organ → tissue → organ system30sLE1.1e
- Q9Dogs and cats are animals that have many similar body structures but they do not mate with each other. These two animals are classified inthe same kingdom, but different speciesdifferent kingdoms, but the same speciesdifferent kingdoms and different speciesthe same kingdom and the same species30sLE1.1h
- Q10The diagrams below represent two systems of the human body. Which two systems are represented in the diagrams?circulatory and digestivecirculatory and respiratoryendocrine and respiratoryendocrine and skeleta30sLE1.2a
- Q11The primary role of the endocrine system is tosupply red blood cells to carry oxygenform chemicals that destroy microbesbreak down food to release nutrientsproduce hormones that regulate body functions30sLE1.2h
- Q12The diagram below represents four organisms. How many of the organisms represented are multicellular?fourtwothreeone30sLE1.1d
- Q13The photograph below shows a cactus plant. Which feature helps a cactus plant prevent water loss in a hot, dry desert environment?flowersbrancheswaxy surfacegreen color30sLE5.1a
- Q14Nutrients enter the bloodstream during the process ofabsorptioneliminationrespirationlocomotion30sLE1.2c
- Q15Which type of organism converts wastes and dead materials into nutrients that can be used by plants?herbivoredecomposercarnivoreproducer30sLE5.1e
