Because genetic variation<span> helps organisms </span>survive<span> in different climates and environments.
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Answer:
Option c in mosques that have minarets
Explanation:
I am Muslim that why you can write that answer
Answer: osteoarthritis occurs when articular cartilage softenssoftens and degenerate. option D is correct
Explanation:
synovial membrane does not degenerate with ages. Inflammatory process does not destroy synovial fluids.when antibody attack in synovial membrane its lead to Rheumatoid arthritis.
450 mya, is where you would find fossils.
Explanation:
The first layer would be newer organismis that haven't quite decayed yet.The second and third layer is where the bones of the dead organasims lie, they havent quite been through the whole process yet, but they are nearly complete just about 100,000 years left.The fourth layers have been through alot, and have been there for many many years we can say abot 100,000,000 years.They are ready to become a fossil fuel.