Biology, 08.07.2019 16:30 hairj9888

Apopulation of meerkats increased in number over a period of one year. which of the following could be an explanation for this? a. the death rate was greater than the birth rate. b. the rate of immigration was greater than the rate of emigration. c. the birth rate and the death rate were equal. d. the rate of immigration was equal to the rate of emigration.

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Answer from: ImmortalEnigmaYT

The option B is the correct option,

"The rate of immigration was greater than the rate of emigration".

Explanation:

which is The rate of immigration was greater than the rate of emigration.

As rate of immigration is higher than immigration means, for example, 1000 market are coming to area from other area and 200 meerkats are leaving from an area. The number of net meerkats over a year will increase by 800.

Answer from: Quest

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.

Looking at the diagram above predict the effect on carbon cycle if all the decomposers were removed

Answer from: Quest

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

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Apopulation of meerkats increased in number over a period of one year. which of the following could...

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