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Anna [14]
3 years ago
8

To be useful in the scientific method, an observation must be:

Biology
1 answer:
nikdorinn [45]3 years ago
5 0
<span>To be useful in the scientific method, an observation must be measurable; it may not have to be proven at that time. The scientific methods have to go through experimentation because they would need evidence to approve or disapprove the derived hypothesis. Hypothesis is where all the provisional statements of the methods start.</span>
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Explain the stages of tissue repair and fill in the blanks.
svp [43]

Answer:

a. Following an injury that breaks the surface of the skin. blood vessels dilate as a result of histamine release from mast cells and other damaged cells.

b. The blood forms a clot and upon drying, a scab forms a barriers between the body and the environment, while phagocytes work to clear the underlying debris from the wound site.

c. Blood vessels begin to re-grow into the wound while fibroblasts begin process of replacing the blood clot with Collagen

d. The remodeling phase then occurs as fibrosis and regeneration of tissues may continue for prolonged period of time.

Explanation:

Hello. Although you did not have all the answer options for the blanks presented in the sentences above, it is possible to conclude that the words in bold are the most appropriate to fill these spaces.

That's because when we cut ourselves, the blood vessels on the surface of our skin rapidly dilate, allowing a flow of blood to be observed. This dilation is accomplished by the release of histamine, which is released by mast cells, which are glands that regulate the immune response. At this point, it is important that any impuzera or microorganism, close to the wound site, is removed and this site undergoes cleaning. This is done by phagocytes, which are intended to prevent the cut from becoming the entrance to a bacterial infection.

Then the blood vessels begin to move and grow again across the wound, with the aim of covering this opening. In this comment, fibroblasts begin to apply collagen and replace the blood clot formed to prevent blood loss. Collagen will be responsible for maintaining the skin and tissues that will be rebuilt in the remodeling phase.

3 0
3 years ago
What is an organism made up of many cells called
Setler [38]
The correct answer in multicellular
5 0
3 years ago
Read 2 more answers
What affect do algae blooms have on ocean ecosystems?(1 point) increased underwater plant population decreased carbon dioxide in
Umnica [9.8K]
An algal bloom affects the whole ecosystem. Consequences range from the benign feeding of higher trophic levels, to more harmful effects like blocking sunlight from reaching other organisms, causing a depletion of oxygen levels in the water, and, depending on the organism, secreting toxins into the water.
6 0
2 years ago
Explain what it means for a section of DNA to be considered a molecular clock. Be sure to discuss the importance of neutral muta
IceJOKER [234]
  <span>Neutral mutations are neither harmful nor beneficial. 

Therefore, they are invisible to natural selection. (Since they neither improve nor worsen one individual's chances of survival and reproduction over another.) 

However neutral mutations can still spread into the population by just random replications and matings. This is called genetic drift. 

In other words, they are 'silent'. They are mutations that exist and propagate in populations, but seem to have no effect at all. 

The reason they can become important to evolution is that a day can come when they *do* have an effect. In other words, even though an individual mutation may have no immediate effect on survival or reproduction, a *combination* of neutral mutations may provide some new benefit or harm ... at which point natural selection *will* act on that combination. 
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
2 years ago
What organisms are non-flowering plants closely related to ?
Sauron [17]

Answer of Q.1. is:

C] Ferns

While, Answer of Q.2 is ;

B] Mollusks

3 0
3 years ago
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