Which two statements are true regarding an energy pyramid? a the number of producers will be more than primary consumers but less than secondary consumers. b the amount of energy at the producer level will be more than the primary-consumer level but less than the secondary-consumer level. c the number of primary consumers will be more than secondary consumers but less than producers. d the amount of energy at the primary-consumer level will be more than the secondary-consumer level but less than the producer level

Select all that apply. why are common names not a good reference to a species? common names can be in different languages common names vary with location common names vary with culture common names vary with species color

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.

The (blank) states that all loving things are made of cells.