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astraxan [27]
2 years ago
14

Select the correct answer from each drop down menu researcher was studying mutations in bateria.he found that certain bateria ha

d changes in there dna that allowed them to be resistant to antibiotics.this research is an example of blank.the mutation will lead to blank
Biology
1 answer:
erastovalidia [21]2 years ago
6 0

A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of <u>evolutionary genetics.</u> The mutation will lead to <u>all the bacteria becoming resistant to the antibiotic.</u><u> </u>

Genetic evolution :

Evolutionary genetics examines the relationship between genetic variation and evolutionary change. As a result of the recent expansion in the availability of whole genome sequence data, large amounts of genetic data are being produced at an increasing rate, making programming an indispensable tool for researchers.

The spread of antibiotic resistance among pathogenic bacteria is a straightforward and elegant example of adaptation through natural selection. Through mutations that alter the biological targets of antibiotics or by obtaining resistance genes from other bacteria, microorganisms can develop resistance to antibiotics.

Learn more about evolution here :

brainly.com/question/14256554

#SPJ4

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As the moon revolves around Earth, it appears to change shape. The moon goes through phases during a period that lasts about one
lorasvet [3.4K]

Answer:

The correct answer is - the reflected light of sunlight changes as it moves around the earth.

Explanation:

The moon appears to change its shape during the revolving around the earth. This change in the shape of the moon takes place due to the fact that the moon does not have its own light and it reflects light from back to us on the earth.

The moon changes its shape on the basis of how much-reflected light or moon we can see and how much of the moon is facing the sun.

The correct answer is - the reflected light of sunlight changes as it moves around the earth.

8 0
3 years ago
Despite their seemingly simple anatomy and radial symmetry, ________ are a type of deuterostome, and closely related to the chor
dolphi86 [110]

Despite their seemingly simple anatomy and radial symmetry Sea urchins and sea star are a type of deuterostome, closely related to the chordates.

What are the characteristics of deuterostome?

Animals classified as deuterostomes share a common embryonic development.

The first opening during development known as the blastopore changes to the anus in deuterostomes while the mouth changes in protostomes.

They have a coelom, which forms as a result of enterocele (coelom from the digestive tract).

These creatures include the following,

- Chordata,

- Echinodermata,

- Hemichordata.

Hence the correct answer is Deuterostome.

Learn more about Deuterostome,

brainly.com/question/12500582

# SPJ4

5 0
2 years ago
Describe how caffeine can affect your stress level.
Gala2k [10]

Answer:

Caffeine is used often to wake you up, making you more alert. This can lead to anxiety or paranoia

Explanation:

The effects Caffeine has on your body can be those of a traumatic event. It stimulates your fight or flight response.

Hope this helped:)

3 0
3 years ago
Hypothesis: alfalfa plants grow best when given nitrogen-rich fertilizer. which statemend of purpose best defines the objective
SIZIF [17.4K]
To test the growth of alfalfa plants with and without nitrogen-rich fertilizer
3 0
3 years ago
Read 2 more answers
Sequence the skeletal and muscular changes that take place when a person inhales
o-na [289]
During inhalation, you breathe in and this contracts the diaphragm and moves downwards. This increments the chest cavity space which means the lungs are expanding. The intercostal muscles or the muscles in between the ribs also aids in the enlargement of the chest cavity. Both muscles contract to pull your rib cage upward and outward when you inhale. As your lungs expand, air is sucked through your nose and mouth. It then travels down to the windpipe and into the lungs to the bronchus, bronchioles and eventually in the alveoli where air exchange between carbon dioxide and oxygen happens.

The additional accessory muscles of respiration are typically used only under conditions that are of high metabolic demand or respiratory dysfunction. However, in instances where these muscles become stiff and hard, expansion of the rib cage can be quite restricted. The accessory muscles of respiration include sternocleidomastoid and the scalene muscles namely anterior, middle and posterior scalene. Both aid in elevating the rib cage. However, their involvement seems to depend on the degree of respiratory effort. During quiet breathing, the scalenes are consistently active at certain phases while the sternocleidomastoid is quite.



6 0
3 years ago
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