Trace fossils include footprints, trails, burrows, feeding marks, and resting marks. Trace fossils provide information about the organism that is not revealed by body fossils. Trace fossils are formed when an organism makes a mark in mud or sand.
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Answer:
Heart valve problems
Explanation:
Marfan syndrome is a syndrome caused by a genetic defect in a gene that is important to define the structure of a protein called fibrin 1 which makes a part of connective tissue.
One of the main problems with people having this disorder is heart problems. Most of the people with Marfan syndrome have damaged aorta. Aorta plays an important role in carrying blood from the heart to other body parts. Therefore heart valve problem is the clinical finding that would be a treatment priority for this client.
Other symptoms associated with these disorders are tall aperture, long and disproportionate arm and leg, abnormal spine structure, etc.
Answer:
Natural selection can cause microevolution (change in allele frequencies).
Explanation:
With fitness-increasing alleles becoming more common in the population.
Answer:
cell membrance
Explanation:
because that is the defect mostly to be located
