Answer:
Bone strength is influenced by changes in the structure (size and shape) and composition [cortical (compact) bone, trabecular (sponge-like) bone, amount of cartilage] of the bone. 6 A high peak mass at a young age and the decrease of bone loss at a later age are two ways to reduce osteoporosis risk.
Explanation:
The correct answer is A. They ensure that the ecosystem is not stripped entirely of its vegetation
Answer:
Cyanobacteria would be the first living thing on earth.
Explanation:
This would make sense because bacteria is always lurking somewhere even if it isn't in any organism. Bacteria can live in rocks or sand. So it would make sense that some type of bacteria would be the oldest thing.
Bacteria could be also one of the last living thing on earth as well.
If you have any questions feel free to ask in the comments - Mark
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Usually live longer if multicellular
