Which of the following is an example of hybridization? O Special enzymes are used to break DNA strands at certain locations.
O Tracy will only cross seedless fruit trees. Over time, her entire orchard is made of seedless fruit trees.
• Levi crosses a horse with a donkey to a create a mule The S mule is stronger than both of its parents.
© The genes from a two monkeys are combined and injected into a bacterium.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

answer: b

coz red blood cells marrow and circulates the body for 120 days.