4. Legumes, a family of plants with fruits or loments, have structures called nodules on their roots. These nodules contain nitrogen-fixing bacteria that convert free nitrogen
from the air into ammonia, which is utilized to make proteins within the plant. What
would be the long-term effect of the loss of nodules containing nitrogen-fixing
bacteria to the legumes and their ecosystem?

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.

answerlength of time the medication is in contact with the skin(moistur level of the skin) depth of respirations blood supply to the area; all of the above; ///