Aspecies of mud snail was studied for five years. during this time, scientists observed the season in which they mated, the number of offspring they produced, and the results of such stressors as drought, famine, and lack of mates. which question were the scientists most likely studying? a. what is the food source most often chosen by the mud snail?
b. are mud snails able to reproduce both asexually and sexually?
c. are mud snails more likely to choose mates with colorful shells?
d. do mud snails prefer to live in water or near a water source?

What are the two main phases of a cell cycle

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.

Which of the following is not a benefit of genetically modified foods? a. pest-resistant crops b. herbicide-resistant crops c. plants that do not require water?