Iam trying to enter the nycef science fair and i need a project plan for my research class. i want to do a study on antibacterial resistance but i don't know but i don't know what the independent variable would be and what can be tested. can someone me and let me know what i can collect i really need with this.

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above