Answer:
A. These homologous structures indicate that these four organisms all share a common ancestor.
Explanation:
Homologous structures mean the organs will have similar structure, but not necessarily function (human arm vs whale's flipper). While analogous structures are similar in function but not structure (wings of an airplane vs wings of a bird). Since the question states that they are similar in skeletal structure, we know they must be homologous structures, thereby eliminating B and C. D is not a choice because the question does not provide anything about the order of evolution. Therefore the answer is A. These homologous structures indicate that these four organisms all share a common ancestor.
The ultimate goal of energy metabolism is produce the compound called ATP.
<h3>What is ATP?</h3>
This is known as Adenosine triphosphate and it is referred to as the energy currency of the cell.
It is formed during energy metabolism from energy-yielding nutrients such as carbohydrates etc which was why it was chosen as the most appropriate choice.
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Answer:
Take medicine to destroy the germs.
Avoid contact with other people's bodily fluids.
Eat healthful foods such as fruits and vegetables.
Explanation:
For the spread of disease, there is usually a host who bears the infectious agent, the agent exits through a port of exit from the host, is carried by a mode of transmission, then enters a susceptible second host through a port of entry. To stop transmission, stopping the infectious agent can include;
- Stopping the agent from leaving the host through port of exit – e.g quarantine the patient
- Curtailing the modes of transmission – e.g killing disease vectors
- Protecting the ports of entry in the susceptible second potential host – e.g by improving immunity
Answer: What roses are the best flowers is a non-scientific question.
Explanation: What flower is better is determined by personal opinion. I might think the red roses are prettier and you might think the white ones are. Where all the other questions can be tested all equally and it is not an opinion.
Formed tiny polypeptides known as Proteinoids when they gathered in little pools.
<h3>What is a polypeptide and how does it work?</h3>
Polypeptides. By joining many amino acids together, polypeptides contribute to the creation of proteins. When two or more polypeptides are joined together to form a protein, the resulting structure is unique to that protein.
<h3>What conclusions did Sidney Fox's experiment reach?</h3>
In the 1950s, Sidney Fox demonstrated that when amino acids were splashed in hot, dry circumstances, they immediately polymerized into proteins. Other studies that used cyanide, clays, and heat to cause the polymerization of amino acids into proteins were effective.
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