Genetics, double helix, cells
Answer: B) The mother's father must also carry the recessive allele
Explanation:
How Are Men Affected by Cystic Fibrosis? Males account for slightly more than 50 percent of all cases of cystic fibrosis (CF) but generally have better outcomes than females until about age 20.
The answer is C: a pollutant.
Protozoans are free-living or parasitic eukaryotic organisms. They feed on dead and decay matter.
<h3>What are protozoans?</h3>
Protozoans are microorganisms. They are eukaryotic organisms, and they can be parasitic or free-living. They feed on dead and decay matter. Examples are amoeba, euglena, paramecium, etc.
Organisms that eat dead or decay matter are called decomposers. They clean the environment by eating the debris or decay, matter. Microorganisms like bacteria or protozoans are decomposers.
Thus, protozoans are decomposers as they feed on dead and decay matter.
To learn more about protozoans, refer to the link:
brainly.com/question/12726711
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