Cool-season grasses usually start growing two weeks after planting, while warm-season grasses can take up to 30 days to germinate. Cool-season grasses usually start growing two weeks after planting, while warm-season grasses can take up to 30 days to germinate.
substratum - an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population; the Celtic languages of Britain are a substrate for English
a tapetum is a layer of tissue at the back of an animals eye that is reflective and helps them have better night vision.umans dont have a tapetum because it is used for night vision and  we dont typically need that funtion. Vertebrates with a tapetum  (the layer of tissue behind the retina) â¦ are typically nocturnal.  Humans are not nocturnal, rather diurnal (active during the day). 1 person found this useful.