Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs. Each organ has its own job to do, but all organs work together to maintain your body.
Answer:
The climate might have changed and it rained more
Explanation:
You can restore damaged ecosystems by planting trees on land where forests have been cut down. Or you can encourage people around you to live in ways that don't hurt the environment.