Marfan syndrome-is caused by a mutation in one gene, yet it affects many aspects of growth and development, including height, vision, and heart function. This is an example of

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

well the answer is 2!