Contour lines do not cross each other because of the variance in elevation between the lines. H<span>owever, an instance where two </span>contour lines<span> intersect occurs when the elevations are simultaneously </span>crossed<span> at an identical point through a vertical ledge.</span><span>
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-Payshence xoxo</span>
C -Chemosynthesis and decomposition
Answer:
The environment selects the lineage which better fits their specializations in the available resources.
Explanation:
The possible motive that lineages demonstrated quickly diversification might happen because the environment contained the opportunities which the lineages took as an opportunity to evolve. The environment could have benefited some species rather than others which could lead to different specializations of different lineages. For example, after the downfall of the dominance of dinosaurs, mammals had a few new environments to evolve with new resources, this led to more lineage biodiversification.
