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Westkost [7]
2 years ago
12

Why do you think people were Initially apprehensive to accept the theory presented by Copernicus?

Biology
1 answer:
FrozenT [24]2 years ago
8 0

Answer:Most experts rejected this revolutionary theory, In Europe at the time, all scientific knowledge and many religious teachings were based on the arguments developed by classical thinkers. If Ptolemy's reasoning about the planets was wrong, they believed, then the whole system of human knowledge might be called into question.

Explanation:

You might be interested in
Conduction deafness occurs when sound waves cannot reach the fluids of the inner ear. Which one of the conditions below will not
Ne4ueva [31]

Answer:

The conditions that will not cause conduction deafness is <em>damage to cochlear hair cells, </em>option B.

Explanation:

Conduction deafness occurs there is an alteration that blocks the transmission of sound from the external and middle ear to the inner ear. It is a mechanical problem in the ear canal or the middle ear.

The outer ear is the external portion that collects sonar waves and directs them to the inner ear. Three structures compose the external ear, these are the auditory pavilion, the ear canal, and the eardrum.  Damages in any of these parts might produce conduction deafness.

The middle ear is located between the eardrum and the oval window of the inner ear, to which it transmits sounds. the middle ear is composed of three little bones called ossicles, the oval window, the circular window, and the Eustachian tube.  Any damage or alteration in this area will also cause conduction deafness.

There are different causes of deafness, such as earwax plug, <u>damage in the eardrum,</u> otitis, traumatisms or malformations, tumors, outer ear infections, <u>imflamation</u>, fluid accumulation, among others. Any of these might impede the properly sound conduction, thus the sound can not reach the inner ear.

8 0
2 years ago
What are three steps doctors would take to repair damaged heart tissue?​
Umnica [9.8K]

Answer:

Here is basic information: "Stem cell therapy for the heart; several different types of approaches are being used to repair damaged heart muscle with stem cells. The stem cells, which are often taken from bone marrow, may be inserted into the heart using a catheter. Once in place, stem cells help regenerate damaged heart tissue

Explanation:

3 0
2 years ago
A healthy way to gain weight would be to simply add more calories to your diet. Group of answer choices
marissa [1.9K]

<u>Answer</u>:

A healthy way to gain weight would be to simply add more calories to your diet is a <u>TRUE</u> statement.

<u>Explanation</u>:

The number of "calories" that an individual consumes and burns daily plays an important role in determining his/her weight. A person who consumes more calories than he burns daily could become overweight whereas if a person is consuming fewer calories than what he burns could cause him to lose weight.

The best way to gain weight is to "add more calories" to one's diet while also keeping in mind the number of calories being burnt daily. The newly added calories should sum up greater than the total calories burnt regularly.

Hence, the statement about adding calories in the diet to gain weight is true.

7 0
3 years ago
The egg cell of a cat has 19 chromosomes. A whisker cell of a cat has _____.
My name is Ann [436]
Thirty-eight because the chromosome pairs are 19 and therefore, no. of chromosome will be 38. 
7 0
2 years ago
Read 2 more answers
The elephants represented in lanes 3 and 5 could have been a match to the ivory sample if you failed to amplify one allele in ei
olga_2 [115]

About the question:

I failed to find the result of the PCR / electrophoresis. However, I will try to explain when to still consider a sample, and when to exclude it.

Answer:

Probably elephants 1, 2, 4, and 6 exposed a pattern of lines that differed in most alleles from the ivory´s pattern. So they were considered to be different and, hence, excluded. However, elephants 3 and 5 only were different in one allele, which might be due to the amplification failure. In these last situations, the experiment must be run again, and include many markers.

Explanation:

The genetic profile is the series of alleles, characteristic of each individual, concerning a series of DNA fragments.

Once genetic profiles are obtained by using PCR/electrophoresis, they must be subjected to interpretation. The researcher must compare profiles to find concordance between individuals or the lack of it.

In the exposed example, probably we have a profile of the ivory sample, and we need to find out to what individual or population it belongs to. So we need to compare the pattern of bands of the different lanes with the ivory´s pattern of bands.

In resumed terms, if the ivory´s patterns completely match with another lane pattern, then this is the individuals or population to whom it belongs the ivory. However, if they do not match, we need to exclude this individual.

But this is not as easy as it looks like. Sometimes it is difficult to interpret the results because bands are not so clear, and sometimes there are failures during amplification, as said before in the statement of the problem.

In these situations, what you need to do is look for the lanes that match the most with the ivory one and discard those that differ the most. These last patterns probably belong to a different animal or population, that why they can be excluded. Individuals suspected of being the same as the individual understudy or belonging to the same population, must be subducted to a repetition of the study. Also, the use of several markers in the study increases the matches chances.

So, in the exposed example, if the amplification fails in one allele, elephants 3 and 5 could be a match to the ivory sample, probably because all the other alleles do match. You can only exclude them if, after the experiment repetition, the involved allele is still different. On the other hand, you can eliminate the elephants 1, 2, 4, and 6 because their pattern bands are significantly different from the ivory´s patterns, so you do not even need to repeat the experiment.

7 0
2 years ago
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