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Rus_ich [418]
2 years ago
15

1. John observed bacteria at 100X under the oil immersion and then decided to go back to 40X

Biology
1 answer:
weeeeeb [17]2 years ago
6 0

Answer:

The observed image will not be sharp

Explanation:

When 100x microscope objective lens is being used, light refraction in the air is enough high to produce image alterations. Image distortions can be minimized by immersion oil because this liquid has a higher refractive index than air. However, light refraction is not usually noticeable when using 4x, 10x and 40x objective lenses. Moreover, this image will not be sharp after putting oil on the slide and going back to the 40x objective, it is for that reason that the 40x is called 'high dry' lens. In consequence, it is required to clean the immersion oil off the 40x objective. In general, it is required to  to remove the oil and refocus off the slide and lens immediately after oil immersion (it can be done by using an oil-soluble solvent).

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Which process removes carbon from the atmosphere and then it into glucose using the energy from sun
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Answer:

Explanation:

Wild guess. Photosynthesis

3 0
3 years ago
Explain why it is important to animals for the major carbohydrate storage polymer, glycogen, to be branched rather than unbranch
kolezko [41]

Answer: A branched polymer has greater terminal glucose residues in comparison to a unbranched polymer of the same molecular weight resulting in a higher number of terminal glucose residues required to be mobilized when energy is demanded. Enzyme and polymer evolve together to meet the dire need for rapid mobilization.

Explanation:

In comparison to an unbranched polymer, a branched polymer has a more compact and symmetrical molecular conformation with a greater terminal glucose residue. It can be broken down easily when energy is needed. For instance, the branched form of starch, amylopetin, in the small intestine starch is hydrolyzed to form glucose which is converted to biochemical energy and stored for later use.

7 0
3 years ago
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tangare [24]

Answer:

Explanation:

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5 0
3 years ago
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17. _______ power is generated by converting the kinetic energy of falling water to electricity. A. Hydrophobic B. Hydroelectric
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3 0
3 years ago
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How might the human population's growth rate change in the future?
Artist 52 [7]

Answer:

The UN projects that the global population increases from a population of 7.7 billion in 2019 to 10.9 billion by the end of the century. By that time, the UN projects, fast global population growth will come to an end.

Beneath the global level, there are of course, big differences between different world regions and countries. While in some regions the world population will likely grow rapidly for the coming decades other regions will continue to see declining population numbers.

Global population growth is determined by the number of births and deaths. Improving health is increasing the size of the population as it is decreasing mortality. The countervailing trend are falling fertility rates – the trend of couples having fewer children is what brought rapid population growth to an end in many countries already, and what will bring an end to rapid population growth globally.

The global population growth rate has already slowed down considerably: It reached its peak at over 2% in the late 1960s and has been falling since.

The UN projections for the global population growth rates, which have been produced since the 1950s, have a good track record in projecting the size of the global population.

While the UN projections are most widely know there are other very carefully produced projections. The demographers of WC-IIASA model what will happen according to different scenarios and make clear that the population growth rate tomorrow depends on what we do today. Rapid progress in getting children and especially girls into schools will result in a much smaller global population.

The biggest disagreement between different projections is concerning the future of Africa. While the UN projects a 3.5-fold increase of the population of Africa, other researchers find a much smaller increase more likely.

Explanation:

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6 0
2 years ago
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