Nitrogen fixation is the conversion of nitrogen gas into ammonia. Please select TWO answers of how this can occur: A)air on top of the top layer of soil comes in contact with particular types of nitrogen-fixing bacteria

B)overflow of water within the soil

C)man-made fertilizers on farm fields exceed natural nitrogen levels in the soil and kill all the bacteria

D) by the intense energy of a lightening strike

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Explain the significance of the increased cell specialization of the volvocine line

Number and variety of living organism; includes genetic, species, and ecological types