Answer:
The phenomenon through which certain pollutants (harmful chemicals) get accumulated in tissues of organisms at different trophic levels in increasing concentrations along the food chain, is called Biomagnification.
Explanation:
1)Suppose, DDT is being used in a farmland.
2)There's a water body nearby the farmland and the water is contaminated with the DDT(let's say the quantity: 0.003 ppb).
3)Now the aquatic organisms (Zooplankton) which consume this water also consuming the DDT also.(0.04 ppm)
4)Next these Zooplanktons are consumed by small fishes. (0.5 ppm)
5)These small fishes are then consumed by Large fishes. (2 ppm)
6)These Large Fishes are consumed by Humans or Birds afterwards. (25 ppm)
7) So at each step DDT is also getting accumulated and at each successive trophic level the quantity of Accumulated DDT gets magnified as the organisms on higher trophic levels consume more biomass than the previous ones. This is a classical example of Biomagnification.
Answer:
i am 90% sure it i (A)
Explanation:
rock b is a sedimentary rock most of the time they have fossils
Are we suppose to name a random fact? well if so opossums and possums are different animals. opossums live in north and south america, while possums live in australia and other countries.
The answer is B. 1,000,000 times
Answer:
Mitosis is the process in which a singular cell divides into two identical daughter cells, this process is called cell division. The purpose of mitosis is responsible for the growth of new cells and to replace dead cells in the body. Hope this helps :)
