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Blababa [14]
3 years ago
6

Compare the specialization of an unicellular organisms to that of a cell from a multicellular organism.

Biology
1 answer:
Liula [17]3 years ago
6 0
Unicellular organisms have only one cell in which a<span>ll seven life processes take place.</span><span>
These unicellular organisms are self-sufficient. They do not need  outside help to function. The multi-cellular organism has to rely on other cells to survive. So, the difference between the cells is that the cells from a multi-cellular organism are interconnected to each other and work together.</span>
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The graph below represents the solar intensity measured over one day in northern Canada. What is the most likely date?
Dmitry [639]
It is important to note that the graph has 0 solar intensity for a long part of the day; around 16 hours. Only from 8 to 16 hours do we have significant sunlight.
This means that the length of day is very short during this time of the year;

The length of the day changes throughout they year; day is equal to night (12 hours each) during the solstices on March 21 and September 23 but during summer day is longer than night in the northern hemisphere; during winter it is smaller. THe smallest daylength is at December 21st (in the northern Hemisphere). This phenomenon is due to the tilt of the axis of the earth.

The correct answer is December 21; (if we talked about a place in the southern hemisphere, the answer would be March 21).
6 0
3 years ago
The study of environmental issues is underpinned by the understanding of the concept of an environmental value system (EVS). Cho
Sonja [21]

Answer:

A set of paradigms or views shaped by one's background, culture and education which determine the way an individual or a group evaluate and find solutions to the existing environmental problems.

Explanation:

Environmental value system (EVS) is a view of a subject that transforms the way an individuals or the society thinks, view and evaluate environmental issues.

Their ideas and views is influenced by cultural, economic and socio-political background.

Factors such as education, media and religious doctrines are inputs in ESV that enhance perception.

Information are processed and changes perceptions of the environment by an individual and also changes decisions.

3 0
3 years ago
When a person is cut, the injured tissue initially releases chemical signals into the bloodstream. These chemicals signal platel
guajiro [1.7K]

Answer:

Platelets would release signals to stimulate the production of more platelets

Explanation:

Positive feedback mechanism is one of the two types of feedback mechanisms (other being negative feedback mechanism) in which the products of a process stimulates more of that product to be synthesized or produced. In other words, the result of a reaction increases the secretion of more results.

In this case where the injured tissue of a cut initially releases chemical signals into the bloodstream. These chemicals signal platelets to be attracted to the injured area. However, if this is a positive feedback mechanism as explained above, Platelets would release signals to stimulate the production of more platelets.

4 0
3 years ago
Sodium bicarbonate is an old standby antacid. it is not recommended for persons suffering from high blood pressure because
Dimas [21]
<span>The sodium in sodium bicarbonate increases the sodium concentration in the blood stream. Through osmosis, larger amounts of water enters the blood stream, thereby increasing the person's blood pressure. For persons with already high blood pressure, this can prove to be dangerous.</span>
6 0
3 years ago
In what era did primate evolve<br><br> a. mezozoic<br> b. paleozoic<br> c. cenozoic
Masja [62]

Answer:

b

Explanation:

5 0
3 years ago
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