Caleb is an inventor who has designed a new kind of fishing net. he is looking for a strong, flexible material that can be used to hold a lot of weight and will not dissolve in water. he wants a synthetic material so he does not have to depend on harvesting a natural product. which material would be best for caleb’s invention? a. cellulose b. nylon c. polystyrene d. vulcanized rubber

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Ineed ! i have no clue how to do this problem.