Genetically modified foods are derived from organisms with the modified in some way that does not naturally occur.

The correct answer will be - DNA

Explanation:

The genetically modified food is the food crops produced by the modification of the genetic material or DNA of the organism.

Since the foods are produced by the modification of the genetic material which is DNA in almost all organisms therefore the foods are known as genetically modified organisms.

The modification includes the insertion and incorporation of the selected genes into organisms like resistance to stress conditions through vectors.

Thus, DNA is the correct answer.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek