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Semmy [17]
2 years ago
6

22. In a study of heart rate in ocean-diving birds, researchers

Biology
1 answer:
patriot [66]2 years ago
5 0

According to the type of samples that were taken from the experiment, it is inferred that the 60 selected samples represent a random sample because they were randomly selected.

<h3>What is a sample?</h3>

A sample is a term that refers to a subset of data selected from a total of data obtained in an investigation.

  • For example, when a researcher wants to study the population of a city, it is a difficult task to study all the people, so he may study a sample of people to draw a conclusion.

According to the above, if the researchers take a sample of 60 recordings of the heart rate of the diving birds, it can be considered a valid sample because it is random and will allow conclusions to be drawn regarding the experiment.

Learn more about sample in: brainly.com/question/350477

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Who was the first researcher to provide direct experimental data that supported the germ theory to explain infectious disease?
trapecia [35]
While Louis Pasteur was the one that procured the germ theory of disease that explains that diseases are caused by microorganisms, the first researcher that provided direct experimental data to support the said theory is Robert Koch. 

Robert Koch developed a criteria for the causality of disease from microorganisms called the Koch's postulates. The Koch's postulates indicate that:

(1) The bacteria must be present in every case of the disease
(2) <span>The bacteria must be extracted and isolated from the host with the disease and should be directly visualized and/or grown in culture
(3) There must be a healthy experimental host that will reproduce the disease once the isolated bacteria is injected
(4) The bacteria should be recoverable from the previously healthy host

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8 0
3 years ago
What monomers are found in DNA and rna
ale4655 [162]
I'm pretty sure that Nucleotides are found in DNA and RNA. 
6 0
3 years ago
Read 2 more answers
Which of the following viral diseases has been eliminated from the general population worldwide?
Svetradugi [14.3K]

Answer: Smallpox

Explanation: Small pox is an ancient disease which is caused by the Virus named as Variola virus. Early symptoms are fatigue and high fever.

The virus then after produces rash on faces arms and legs. The spots gets filled with fluid and pus and in later stages it turned into crust.

This crust eventually dried and falls off. It was fatal in almost 30% of the cases.

It eradicated by a collaborative global vaccination program which was led by WHO.

4 0
3 years ago
all the major organs of the body are formed by week 10 of gastrulation which process makes this possible
OLEGan [10]
The process known as differentiation
3 0
3 years ago
Pancreatic cells, which secrete a large amount of digestive enzymes, are labeled with radioactive leucine and then chased for se
stiv31 [10]

Answer:

On the exterior of the cell.

Explanation:

The black spots as mentioned in the given case would appear on the exterior of the cell after three hours, which suggests that the proteins or the enzymes had been discharged from the pancreatic cell. The mentioned method of labeling and then chasing the component is known as a pulse-chase experiment.  

In this experiment, the labeled compounds are used to follow the dynamics of cellular pathways and procedures. The molecules in a cell get produced and degraded spontaneously at various rates. These changes in the localization of the molecule and its expression levels with time can be determined by exposing or pulsing cells to a labeled compound.  

After this the cells are exposed sequentially to the same compound unlabeled, the process is termed as the chase. The compounds are generally labeled with fluorescent dyes or radioisotopes.  

3 0
3 years ago
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