Algae and nitrogen-fixing bacteria are photosynthetic organisms.
Answer:
America and Canada I think
Explanation:
The main reason for the species extinction is for the ecological changes.
Answer:
Skin is the human body's largest organ.
Explanation:
Body organs aren't all internal like the brain or the heart. There's one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.
