5 of The table below shows the results.
Age in years
Mean time for
muscle to
contract in
milliseconds
20
18
40
20
60
23
80
30
How much longer does it take for the muscle to contract at 80 years of age
compared to at 20 years of age?
Give your answer in seconds.
Time =

goog may have it for you

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.

wild parsnip is a perennial plant which reproduces rapidly in areas which have no sign of agricultural activity such roadside or at no tillage open areas. it's considered invasive because it can inhibit the growth of another plant  and its reproduction is fast. there are several harmful effects of this invasive plant although its taproot is edible since it is a member of the carrot family. wild parsnips can cause skin blistering when in contact because of the chemicals it contains, second it inhibits the growth of other plants, it will restrict the growth of animals when eaten and lastly, it drives away natural pollinators like bees.