Monday: What are the similarities that all the organisms classified under the family Hominidae share. Tuesday: How can a small mutation provide a small advantage to an organism?

Wednesday: Why is a long sharp beak advantageous for eating insects and a short blunt beak beneficial for eating seeds and fruit?

Thursday: What could cause the extinction of an organism? Provide an example.

Name the glands associated with human digestive system

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.

As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged