The answer is d. A large asteroid or comet impacted the Eartg
Capillaries are made up of very thin and flat tissues that are spread across the body. Substances are able to diffuse through the capillaries because of the presence of blood. Particularly, the red blood cells that make-up blood within the body. These cells have the ability to carry oxygen, carbon dioxide, glucose, and water to pass through the capillaries.
The last three are correct
Answer:
Decomposers and scavengers break down dead plants and animals. They also break down the waste of other organisms. Decomposers are very important for any ecosystem because if they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.
Explanation:
