Which food source’s scarcity caused the Yellowstone National Park beaver population to decrease? fish
grass
otter
willow

Suppose a scientist measures the amount of dna per cell of a particular diploid species at various stages of meiosis. she finds that the meiotic cells contain 3.7 pg , 7.3 pg , or 14.6 pg of dna. match each stage of the cell cycle to the corresponding amount of dna contained within a cell at that stage.

Trilobal fibers were found on kidnapping victim. which of the following fibers would most likely to be trilobat? a. cotton b. nylon c. wool d. silk me

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions