The top of the Stigma is sticky and is where the pollen attaches to it.
I hope this is what you wanted
<span>I believe is answer is the temperature is too low. If the main fermentation products will be always ethanol in the yeasts chosen for alcoholic fermentation, since the yeasts are growing well on the maltose, the temperature may be too low which causes poor extraction of color and tannins in red wines and can also cause sluggish fermentations and production of high levels of ethyl acetate.</span>
Convection keeps the earths surface warm
Answer:
environmental factors do not affect a species
