During the process of biological magnification , the concentration of pollutants, such as DDT or mercury, is multiplied as it passes up a food chain.
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The answer is D. Kidneys absorb more water,volume of water lost from the skin increases and the hairs on the skin lie flat
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The characteristics of cells to divide and convert into specialized cells makes it possible for the different levels of organizations to occur. Specialized cells perform specialized functions which are necessary for the body of each organism. The working of these specialized cells allows the formation of the specialized tissues and the levels of organizations continue. Hence, we can consider the ability of the cells to multiply and divide into specialized cells as the basic characteristic due to which levels of organization occur.
A keystone species refers to the organisms that define the entire ecosystem. These organisms are important because without them the ecosystem will work differently. They are known to be low in functional redundancy that means if these so-called keystone species disappear, there are no other species who can fill in their role. We can protect them by preserving and protecting their natural habitat, avoiding hunting activities especially the organisms that are considered to be critically endangered, planting trees, and proper waste disposal. These are some of the activities that we can do to protect them.
