Ferns, such as the one in the picture, can be found today. They are usually found growing in warmer climates. However, fossils of ferns have been found in places with cold climates where it often snows today. What can we conclude about the places where the
fossils of ferns have been found?
A)
Ferns used to live in cold climates.
B)
These places once had a warmer climate.
C)
These places once had a colder climate.
D)
Someone tried to grow ferns in cold climates.

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.