I can barely see please upload a better picture
Answer:
The correct answer will be-
1. Observation-option B.
2. Hypothesis-option A.
3. Experiments- option C.
Explanation:
A scientific method involves various steps to explain a natural phenomenon of nature. It begins with making an observation which leads to asking the scientific question. The researcher does background research and proposes a hypothesis which could be tested through experiments. The experiments could prove or disprove the hypothesis based on the results.
In the given question the observation made is an equal amount of A and T and G and C are observed. It leads to a hypothesis which shows that this could have happened due to the winding of two strands of DNA and the experiments was performed through X-ray diffraction pattern.
Thus, the selected options are the correct answer.
1. Green, because it serves as a perfect camouflage against prey in vegetations.
2. It is a process whereby a breeder of animals or plant cultivator, chooses to breed between different species for their characteristics that are inheritable.
3. Mutations is an evolutionary process that helps a specie better adapt to their environment. DNA changes causes by mutation can help lighten or darken colour pigment. Like in the dark-coated mouse, where 9 changes to the DNA coding for color makes its fur lighter for better camouflaging.
A scientist who studies earthquakes is considered a seismologist.
Answer:
The instruments that is being used to care for the instrumentation and supplies that have been exposed to the inside of intestinal tract are kept aside from the other sterile instruments.
The instruments are kept aside to protect the other instruments from being contaminated by it.
The instruments needs to be sterile as it cannot be replaced again and again for every technique that is being carried out in patients.
So, the instrument that is used once are kept separated.
