2. Homologous structures in different species: A. appear different from each and function very differently in each species
B. appear similar to each in structure but function differently in different species
C. are considered to be analogous only
D. look the same in each species and also function the same in each species

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled