Which of the following is an example of hybridization?

a. Special enzymes are used to break DNA strands at certain locations.

b. Levi crosses a horse with a donkey to create a mule. The mule is stronger than both of its parents.

c. The genes from a two monkeys are combined and injected into a bacterium.

d. Tracy will only cross seedless fruit trees. Over time, her entire orchard is made of seedless fruit trees.

B

Explanation:

Hybridization is defined as crossing two species that are different from one another to make a so-called "hybrid" hence the name hybridization. When Levi is crossing a horse with a donkey, the two species are different creating a "hybrid", the mule.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.