Genetic variation<span> is essential for </span>natural selection<span> because </span>natural selection can only increase or decrease frequency of alleles that already exist in the population.Genetic variation<span> is caused by: mutation
i pulled this off of the site i got the information from i hope this helps you out if not sorry
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I know that there’s 40 different species of boa constrictor
Some of the morphs include albino boa, anery boa, Aztec boa, blood boa, boawoman caramel boa, eclipse boa, ghost boa, hypo boa, jungle boa, leopard boa, motley boa, paradigm boa, snow boa, snowglow boa, and sunglow boa.
Not sure if that’s the answer you’re looking for but I tried
Answer:
Scientists use a system like this to group living things. the grouping are based on common traits. this system helps scientists to study the million of organisms of new organisms are discovred each year
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All living organisms need to take substances from their environment to obtain energy, to grow and to stay healthy
<h3><u>Answer and explanation;</u></h3>
- <em><u>Biogeochemical cycles are cycles or pathways through which a chemical element or a molecule circulates through the abiotic (non-living) ad biotic (living) components of an ecosystem.</u></em>
- <u><em>All chemical elements occurring in organisms are part of biogeochemical cycles.</em></u> Carbon, hydrogen, oxygen and nitrogen are the key components in life of organisms. Therefore, the carbon, nitrogen, and oxygen cycles are the most important biogeochemical cycles.
- <em><u>Biogeochemical cycles are essential for life and important to the ecosystems because matter on earth is limited in amount, and space for dead organisms as well. </u></em>
- <em><u>Additionally, biogeochemical cycles are important as as they transport and store these chemical elements so that they can be used by living organisms. </u></em>
