Since there are no given choices, I would just compare and contrast DNA and RNA. These are the two types of nucleic acids in the human body. The structural unit of nucleic acids are composed of repeating units of monomers called nucleotides. Nucelotides are composed of three functional groups: sugars which are specifically pentoses (5-Carbon sugars), phosphate group and nitrogenous base.
Now, the RNA and DNA differ in the composition of these sugars and the bases. Based on the nitrogenous bases and sugar, the DNA has a deoxyribose as the sugar and its 4 bases are adenine, guanine, cytosine and thymine. For RNA, the sugar is ribose while its 4 bases are <span>adenine, guanine, cytosine, and uracil.
They also differ in their structure. </span>DNA is a double stranded β-helix with a long chain of nucleotides. RNA is composed of a shorter chain with a single strand α-helix structure.
Lastly, they differ in their functions. T<span>he DNA is responsible for storing the genetic information while the RNA is responsible for transporting the genetic information to the ribosomes which synthesize proteins.</span>
The biological species concept proposed by Mayr states that a biological species is a population whose members can interbreed and produce fertile offspring.
<h3>What is the biological species concept?</h3>
The biological species concept is a model used in biology sciences to delimit a species through mating fertile features of the individual that belong to such species.
This concept (biological species concept) was proposed by Ernst Mayr to understand how each species represent a functional unit.
In conclusion, the biological species concept was proposed by Mayr and states that a biological species is a population whose members can interbreed and produce fertile offspring.
Complete question:
Fill the blank. The biological species concept proposed by ______ states that a biological species is a population whose members can interbreed and produce fertile offspring.
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Answer:
A.
Explanation:
Predators hunt prey. (Obviously). As such, they help control the population of that particular prey-species. If the predator species is removed from the equation, 2 times are changed. Long term & short term. Long term includes lower populations due to lack of resources. Short term includes overpopulation due to lack of threat.
C. Medusa. Everything else on the list is a part of another creature, medusa is the only cnidarian here!