2. Based on the information, the common ancestor of the modern day horse and all
the extinct, fossilized species in the
diagram is the

segmented body, an exoskeleton made from chitin, and joint appendages.

producers within ecosystems are essential as they are at the base of the food chain. plants are examples of producers. they use the process of photosynthesis to capture light energy and use it to convert simple inorganic substances (carbon dioxide and water) into organic substances (glucose).

i think the correct answer from the choices listed above is option c. the statement that is correct about   the cave and geyser would be that the cave is formed when groundwater reacts with the limestone in rocks and the geyser is formed when groundwater gets heated. hope this answers the questio