Answer:
The main difference between exotic and invasive species is that exotic species is harmless to the ecosystem whereas invasive species is harmful to the ecosystem.
Explanation:
Invasive species can be harmful the native habitats, natural areas such as lakes, forests, and rivers, agriculture, economy, and humans.
The protein that binds calcium in intestinal cells resulting in Vitamin D deficiency would be a calbindin. In addition, this calcium-binding protein wherein it has an important role in intracellular calciums activities inside the intestine. This kind of deficiency is commonly found in mammals and fowls.
Crab grass does so well when ordinary grass struggles in late summer
because its seed germination is higher when exposed to hotter
temperatures.
The seeds of crab grass are mostly dormant and their germination is
dependent on the soil temperature. During summer, the temperature of the
soil is usually higher which aids its growth .
This therefore explains the reason why crab grass does well than ordinary
grass in late summer periods.
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