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mars1129 [50]
3 years ago
15

From the statement below which of the scientific advances most directly contributed to development of the cell theory ?

Biology
1 answer:
Law Incorporation [45]3 years ago
3 0

Answer:  The correct option is d. the improvement of the microscope and microscopic techniques.

In the 1600s the development of cell theory was led by advances in microscopy.  The cell theory is historic in terms of scientific theory. According to the theory it was proposed that all living organisms are made up from cells, cell is the basic structural unit in all the organisms and new cells arise from pre-existing cells. The continuous improvement of microscopy with time and advancements in magnification technology were enough for discovering the cells and contributed the most towards the cell theory.

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When looking at graphs showing 800,000 years of past climate data, there is a direct relationship over time between temperature
Inessa05 [86]

When looking at graphs showing 800,000 years of past climate data, there is a direct relationship over time between temperature and the concentration of carbon dioxide in the Earth's atmosphere is a <u>true</u> statement.

Explanation:

Many paleoclimate studies and research done by observing events like glacial cycles etc over the past 800,000 years about climate changes over the past years have proved the strong linear relationship between temperature and carbon dioxide concentration in the Earth’s atmosphere.

These studies clearly reiterate that when the carbon dioxide concentration in the atmosphere increases, the temperature also increases; and when the CO2 concentration decreases, the temperature also decreases. Carbon dioxide also controls the amount of greenhouse gases in the atmosphere by controlling the temperature.

Increased CO2 levels increases temperature which in turn will increase the evaporation of greenhouses gases present in the atmosphere including CO2 from the reservoir; however, the CO2 can stay in the atmosphere for very long time. All of these factors have led to various climate changes globally .

5 0
3 years ago
A major freeway runs along a stretch of the ocean shore. Over time, scientists begin to
ELEN [110]

Answer:

D. Any or all of the above could be causing the problem.

Explanation:

Pollution has been said to have adverse effect on living organisms. In this question, a decrease in number of intertidal organisms has been observed. Since a major freeway runs along a stretch of the ocean shore, the most likely cause of the death of the intertidal organisms is the release of any form of toxic waste into the water body.

Oil pollutants causes death of living organisms by hindering the entrance of oxygen into the water body. It makes it difficult for oxygen, which is a requirement for life, to penetrate the water body. Hence, living organisms in the water body will suffocate and die.

Toxic wastes also causes the death of organisms when ingested in excess. Waste water causes deterioration in the oxygen content of the water body. Hence, any or all of the above options can likely cause the reduction in number of the intertidal organisms.

3 0
3 years ago
People with dark brown eyes have greater amounts of the protein melanin in their irises than people with light blue eyes. The am
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