What is an organism's niche?
the physical environment of the organism
the role that an organism plays in the environment
the traits that increase an organism's survival
the competitors and predators of the organism

How many types of rock can form from the rock cycle

Answer now! good pts and a brainliest potatoes are what im like a potatoe irdk have a good day

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.