Water temperature influences the onset of fish spawn, aquatic vegetation growth and the biological demand for oxygen in ponds. Temperature increases it holds less oxygen. Also water stratification.
D. Man-Made is the answer
<span>This theory is called punctuated equilibrium. In this theory it is explained that there are very long periods of no change at all to a species, yet there are also bursts of evolutionary change interspersed within the time period. The period of remaining the same throughout time (most of the time) is called stasis, and is present within this theory of punctuated equilibrium.</span>
Gravity can be such a tricky subject to talk about I wish I could answer this I need to study more
Fixation answer : hope this helps
