Afarmer was growing the peas seen here: round and yellow are dominant traits; green and wrinkled are recessive traits. the farmer's goal was to produce a crop of round, green peas. to do this, she introduced plants that bred true for green seeds (peas). over time the gene pool was modified and the presence of yellow peas became non-existent. this change in the gene pool is a result of hybridization. in scientific terms, we could call this a method of a) gene flow. b) emigration. c) niche shift. d) genetic drift.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.