What monomers are found are found in dna and rna

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

2. what process do mrna and trna work together to complete? (3 points)

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.