Complete the following analogy

scratch test: hardness
a. metallic luster, b. porcelain tile

c cost: diamond purity, d. colored diamond clear diamond

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12