Scientists have found large groups of fossils of marine organisms on mountaintops. What does this tell scientists about the past? 1. That these organisms left the ocean and climbed to the top of an inland mountain to die.
2. That these rocks were once below the surface of an ocean.
3. That these rocks were always above the surface of an ocean.

4.That these rocks must have been moved there by someone else.

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater