Answer:
The effort put by scientist and sailors about earth is that they keep on going round the earth and putting their lives in danger and some even give their lives.
Explanation:
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Answer:
Cohesion means sticking together
Explanation:
Robin can have a ddt concentration of 444ppm while the ddt concentration of soil is 10 ppm. This happens due to biological magnification.
<u>Explanation:</u>
In biological magnification the concentration of toxic substances at successive trophic levels keeps increasing. Due to biomagnification, what starts out as a small concentration grows while moving to successive trophic levels. DDT is a pesticide which is used to kill pests that affect crops.
DDT used in farms gets deposited in the soil. From the soil it can reach various trophic levels. At each trophic level its concentration keeps increasing.
Robin is a bird that is a secondary consumer and thus belongs to the higher trophic level. Thus even if the DDT concentration is as low as 10ppm in the soil its concentration will keep increasing and can become a high value like 444ppm.
Answer:
1- Information is transcribed in DNA to mRNA
2- mRNA leaves the nucleus
3- Ribosome attaches to the mRNA
4- tRNA anticodon carries an amino acid that compliments the mRNA codon
5- The chain of amino acids forms a protein
Explanation:
I think the mean DNA but don't quote me on that.
