Biologist: species with broad geographic ranges probably tend to endure longer than species with narrow ranges. the broader a species’ range, the more likely that species is to survive the extinction of populations in a few areas. therefore, it is likely that the proportion of species with broad ranges tends to gradually increase with time.

Assume: The question that has been asked is that " The biologist's conclusion follows logically from the above if which of the following is assumed? "

Explanation:

The characteristics that will help in the survival of the organisms will increase over the period of time.

The characteristics help the species endure longer then the other species which does not have these characters.

As the survival rate of the species having more endurance is more there is a less chance of their extinction.

So, the species having more fittest and survival favoring characters will survive more.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.