Select the correct answer. for years, rita visited her friend's house near the ocean. she noticed that her own home, far from the beach, experiences much greater swings in temperature. what is the reason for this difference? a. the salt content of the ocean air combat extreme changes in temperature. b. ocean storms serve as a buffer against temperature extremes. c. rita is imagining this climate difference. everything seems nicer at the beach. d. large bodies of water, when compared to land, take longer to heat and cool.

The answer is D. Large bodies of water, when compared to land, take longer to heat and cool.

Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novel organisms. New DNA is obtained by either isolating and copying the genetic material of interest using recombinant DNA methods or by artificially synthesising the DNA. A construct is usually created and used to insert this DNA into the host organism. The first recombinant DNA molecule was made by Paul Berg in 1972 by combining DNA from the monkey virus SV40 with the lambda virus. As well as inserting genes, the process can be used to remove, or "knock out", genes. The new DNA can be inserted randomly, or targeted to a specific part of the genome.