In mitosis cytokinesis occurs once in meiosis is occurs twice.
Biodiversity is intimately linked to the production of ecosystem services. ... Invest models habitat quality<span> and rarity as proxies for biodiversity, ultimately estimating the extent of </span>habitat<span> and vegetation types across a landscape, and their state of degradation.</span>
The difference between them is that an ecosystem is a community of organisms and their environment. And a biosphere is all the living organisms.
Just to add on over time they have develiped a tuff outer layer to stop weather and insects from harming them.
