In many organisms, on both the microscopic and gross levels, there are anatomical structures with specific adaptations to serve to increase surface area in order to facilitate chemical reactions as well as transport mechanisms. what structure listed here is an example of such a surface area adaptation? a)the cristae of mitochondria b) the irregular shape of an amoeba c)the large size of a plant vacuole d) the ligand-gate receptor of the cell membrane

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

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.

An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.