What is the best explanation for why scientists involved in biotechnology sometimes insert the dna of one organism into a second organism?
to increase meiosis
to make more efficient cell organelles
to create a new species
to cause the second organism to produce proteins

Which of the following is the most likely result of converting forestland to urban development? a.the amount of land available for lumber production decreases. b.fewer trees are needed because cities are made mainly of concrete. c.people discover more efficient ways to grow trees. d. the price of lumber goes down.

The body is protected against harmful flu viruses by

Ascientific idea becomes valid when it is what?