How did the railroad help change the prairie? A. The railroad broke up the long, continuous stretches of the grassland where animals could roam freely.

B. They used coal as a fuel, which caused pollution that harmed the grasses.

C. Railroads frequently ran into bison and other animals on the tracks, which disrupted the ability of the animals to roam freely.

D. Railroads were very noisy, which scared animals and disrupted their living patterns.

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2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

Interpret the model. a three-part model with black right-arrows between the parts. left part: a large green apple-shaped component with a w-shaped indentation centered on top. a small blue apple-slice shape sits above the left indentation and an arrow points from the shape to the indentation. a small purple apple-slice shape and arrow sit above the right indentation and an arrow points from the shape to the indentation. middle part: a large green apple-shaped component with a square indentation centered on top. sitting in the left side of the indentation is a blue apple-slice shape with a flat bottom, fused to a purple apple-slice shape with a flat bottom on the right side of the indentation. right part: a large green apple-shaped component with a w-shaped indentation centered on top. an up-arrow is centered above the indentation pointing to a fused blue and purple apple-slice-shaped flat-bottom component sitting above the indentation. assigne "true" or "false" to the end of each statement. the model shows a shape change occurring in the enzyme after the substrate is bound in the active site. t/fthere are two products in this model. t? f there are three substrates in this model. t/f the model shows two different enzymes. t/f

What are the responsibilities of the region of the brain highlighted below? =+= will rate brainiest =+=