What is point-source water pollution?

a.
pollution that has no obvious source

b.
pollution that has more than one source

c.
pollution that is discharged directly into the water at one place

d.
pollution that is caused by runoff from farms or factories

The development of_ factored in the development of complex organisms.

How does a lytic infection differ from a lysogenic infection?

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele