Researchers want to use edna to look for an invasive species in a waterway. which of these steps should they do first? a. sort dna into bands on a gel. b. amplify the amount of dna. c. cut dna into small pieces. d. precipitate dna in each sample.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses