Answer:
B. Major types of fossil fuels: coal, oil and natural gas
Explanation:
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They are genetically identical to the parent cell.
Answer:
Substance C
Explanation:
From the statement scenario, it is given that no water remained above substance C. This then means that substance C actually absorbed all the water above it faster than the two other substances.
Therefore, we can deduce that substance C has the greatest porosity. This means that it has the highest amount of spaces within where the water can be absorbed.
Porosity has to do with the available empty spaces which is within a material. This property allows materials or substances to absorb other substances that are absorbable.
The right answers are:
A-present in eukaryotic genomes ==> Both exons and introns
B-generally absent from bacterial genomes ==> Introns
C-part of the final mRNA strand ==> Exons
D-code for an amino acid sequence ==> Exons
E-removed from initial mRNA strand prior to translation ==> Introns
F-present in the DNA used as the template for transcription ==> Both exons and introns
In the genes of eukaryotic organisms, the exons are the segments of an RNA precursor that are conserved in the RNA after splicing and that are found in mature RNA in the cytoplasm. The segments of the RNA precursor that are removed during splicing are called in opposition to introns. Exons are mainly found in messenger RNAs (mRNAs) encoding proteins. Some mRNAs may sometimes undergo an alternative splicing process in which one or more exons may be excised or some introns preserved in rare cases.
