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xz_007 [3.2K]
2 years ago
11

100POINTS & BRAINLIEST IF YOU ANSWER CORRECTLY!!

Biology
1 answer:
Sidana [21]2 years ago
5 0
  • Scientists believe that before 8million years ago whales came to earth
  • They were first land animals like us .
  • They were mammals but still now.
  • They had legs on their body and they can walk and run.
  • After evolution whales started coming and living in sea .
  • They get evolved inside living in sea.
  • They their legs turned to flippers and they got them used as paddlers.
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biological magnification is a natural process when a persistent material is taken-up by primary producers because:
Simora [160]

The process of some chemicals building up in living things to a concentration that is higher than what occurs in the inorganic, non-living world is known as "biomagnification" or "biological magnification."

<h3>What is meant by biomagnification ?</h3>

Biomagnification is the accumulation of a chemical by an organism as a result of exposure to both food and water, resulting in a concentration that is higher than what would have been expected from equilibrium and higher than what would have occurred with only water exposure.

The accumulation of a certain material in the bodies of creatures at various trophic levels of a food chain is known as biomagnification. The buildup of the chemical DDT in zooplanktons is one instance of biomagnification in action. These zooplanktons are consumed by little fish.

The process of some chemicals building up in living things to a concentration that is higher than what occurs in the inorganic, non-living world is known as "biomagnification" or "biological magnification."

To learn more about biomagnification refer to :

brainly.com/question/7631542

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1 year ago
The opossum, which is native to North America, and the kangaroo, which is native to Australia, are marsupials.
timofeeve [1]

Answer:

Belong to the same species

Explanation:

Marsupials carry their young in "pouches", and are therefore related to <em>other</em><em> </em>marsupials, like the <em>kangaroo</em><em>,</em><em> </em><em>opossum</em><em>,</em><em> </em><em>wombats</em><em>,</em><em> </em><em>and</em><em> </em><em>koala</em><em> </em>to name a few.

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When an animal runs along the ground by flexing some of its muscles, what causes its muscles to contract?
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Letter A for sure! Hope I helped.
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