The diagram above shows two celestial bodies with the same mass, M, placed a distance, D, apart. What would increase the gravitational force between the two bodies?
(1 point)
Responses
Maintaining M and increasing D
Maintaining M and increasing D
Decreasing M and maintaining D
Decreasing M and maintaining D
Decreasing M and increasing D
Decreasing M and increasing D
Increasing M and decreasing D
Increasing M and decreasing D
Moose are typically silent creatures as they move through their taiga biome and through the northern regions of the United States. However, in late fall, the adult moose tend to vocalize more with a loud call called a rut. The males have a low and loud bellow. Which statement best explains the reasoning for this behavior in the fall?
(1 point)
Responses
Vocalizations are common in the fall to follow the lead of a migrating moose.
Vocalizations are common in the fall to follow the lead of a migrating moose.
Vocalizations are common in the fall to deter other moose from migrating to the area.
Vocalizations are common in the fall to deter other moose from migrating to the area.
Vocalizations are common in the fall to call for mates so that offspring are born in the spring.
Vocalizations are common in the fall to call for mates so that offspring are born in the spring.
Vocalizations are common in the fall to prevent predators from moving into the habitat of the moose
Vocalizations are common in the fall to call for mates so that offspring are born in the spring.
Kira and Jaden conducted an experiment to test which soil would be BEST for growing plants. They used sand, silt, and clay. They also made a mixture of soil using equal parts of sand, silt, and clay. They planted bean seeds in four pots and placed the pots in the sunlight. They watered the pots every day and tracked the seed germination and plant growth. At the end of the experiment, the seed in the pot of silt grew fastest.
Which conclusion can be drawn from the experiment?(1 point)
Responses
Silt is the best type of soil for growing bean seeds.
Silt is the best type of soil for growing bean seeds.
The seeds in the pots with sand and clay did not grow.
The seeds in the pots with sand and clay did not grow.
The amount of sunlight affects the growth of each seed.
The amount of sunlight affects the growth of each seed.
The amount of water given to each seed affects its growth.
Silt is the best type of soil for growing bean seeds.
Question
An organism lives in an isolated lake located in a deep cavern. The lake is static, or unchanging, due to isolation. What method of reproduction is most likely for this organism?(1 point)
Responses
Asexual reproduction, because the organism does not need to adapt to a changing environment.
Asexual reproduction, because the organism does not need to adapt to a changing environment.
Asexual reproduction, because the organism’s environment changes often, and it needs to be able to adapt.
Asexual reproduction, because the organism’s environment changes often, and it needs to be able to adapt.
Sexual reproduction, because the organism does not need to adapt to a changing environment.
Sexual reproduction, because the organism does not need to adapt to a changing environment.
Sexual reproduction, because the organism’s environment changes often, and it needs to be able to adapt.
Asexual reproduction, because the organism does not need to adapt to a changing environment.
An onion farmer finds that, after long drought, some of his onion plants are still alive. Which best explains why these onion plants were able to survive?(1 point)
Responses
They have shorter roots that prevent the onions from drying out as fast.
They have shorter roots that prevent the onions from drying out as fast.
They are able to reproduce more quickly than other onion plants.
They are able to reproduce more quickly than other onion plants.
They have different variations that cause them to be more resistant to drought.
They have different variations that cause them to be more resistant to drought.
The color of the onions is lighter, and they absorb less sunlight than other onion plants.
They have different variations that cause them to be more resistant to drought.
A farmer is using a new strain of genetically modified corn. The corn contains genes from the fungus Bacillus thuringiensis. Bacillus thuringiensis is a fungus that produces a protein that effectively eliminates certain pests. Which result can the farmer expect after switching to the new modified corn?(1 point)
Responses
The corn will grow to maturity in half the amount of time
The corn will grow to maturity in half the amount of time
The corn will require less space, water, and nutrients to grow
The corn will require less space, water, and nutrients to grow
The corn will produce twice as much corn on the same number of plants
The corn will produce twice as much corn on the same number of plants
The corn will be less affected by certain pests