*Help pwese*What is the purpose of inserting a target gene into bacteria? A. To make them produce a specific protein or other product that can be used by humans.
B. To use it as a host to transfer it to human DNA.
C. To test the gene on a small scale before inserting it into an animal.
D. To make the bacteria resistant to injection by virus DNA.

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1