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LenKa [72]
3 years ago
8

Which of the following best describes the interaction between Earth’s crust and living organisms?

Biology
2 answers:
MaRussiya [10]3 years ago
8 0
<span>"Raw materials which are essential for life are cycled through the Earth's crust" </span>
Alecsey [184]3 years ago
6 0

Answer: b.  Fossil fuels are a valuable energy source for the biosphere.

Explanation:

The living organisms are dependent upon the earth crust for their food and resource needs. The earth crust is mined for a variety of inorganic and organic reserves like minerals, fossil fuels like petroleum, gasoline, natural gas and coal. The fossil fuels are non-renewable resources which are produced after million's of years the complete degradation and decomposition of the organic matter of dead animals and plants. This act as source of energy by the living organisms in biosphere.            

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When a tapeworm steals nutrients from the gut of a mammalian host, that symbiosis is called?
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Tapeworms are known to feed off of their hosts to complete their life cycle. This type of symbiotic relationship is called parasitism. Parasitism is defined as the type of symbiotic relationship wherein only one of the two interacting organisms benefit, at the latter organism's expense. Parasites could either be found inside or outside the host's body. Tapeworms are internal parasites. 
3 0
3 years ago
One of the questions early geneticists had to answer was how only four nucleotides can specify placement of 20 amino acids in pr
jenyasd209 [6]

Answer:

<h2>Codon </h2>

Explanation:

The sequence of DNA is transcribed into mRNA, containing the sequence  for protein synthesis, protein is synthesized according to the codons in mRNA.  This sequence of nucleotide on DNA/ RNA is divided into a series of three nucleotide units, and one unit of three nucleotide is  known as codons.

There are overall 64 codons, 61 codons out of 64 codons, codes for overall 20  amino acids, and the remaining three  are stop codons.

These there codon do not code for any amino acid.

And these 61 codons, they  code for total 20 amino acids. So one amino acid can be coded by one or more than one codons.

6 0
3 years ago
Which kingdom contains organisms that are multicellular,heterotrophic, eukaryotic and lack cell walls
Anastaziya [24]
<span>Animalia -</span><span>  Mammals, amphibians, reptiles, birds, fish, mollusks, and insects are all included in this kingdom.</span>
4 0
3 years ago
Read 2 more answers
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tigry1 [53]
To provide energy to the body.
7 0
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Please help... getting a headache... How does natural resources onna whole impact on the earth?​
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Sorry if I didn’t help
Anyways have a nice day / night! :)
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