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aalyn [17]
3 years ago
14

Which discovery is most directly related to careers in biology?

Biology
1 answer:
Kobotan [32]3 years ago
6 0
<h3>The discovery that is related to careers in biology is</h3><h3 /><h3>B. The discovery of the genes that are responsible for Alzheimer’s disease</h3>

Explanation:

Biology is the study of Life and living organisms. Any person associated with research or scientific studies of living organism is directly related to careers in biology.

Alzheimer's disease is a genetic defect caused in living beings. The genes causing this disease are:

  • Amyloid precursor protein (APP)
  • Presenilin 1 (PSEN1)
  • Presenilin 2 (PSEN2)

Due to mutation of these genes the nerve cells get damaged and patients begin to show the symptoms usually at the age of 60 and above. The genetic test results can help in early prevention and cure to Alzheimer's disease. Though research is being continued to find if there are more genes involved.

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What type of microscope has low magnification but allows you to observe very large specimen is because the larger working distan
lilavasa [31]

Answer:

Stereo microscopes, also called low-power microscopes, dissection microscopes, or inspection microscopes, are designed for viewing "large" objects that are visible to the naked eye at low magnifications (under 50x). A stereo microscope provides an upright and unreversed, 3-dimensional image of the specimen.

Explanation:

3 0
3 years ago
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Use the model here to describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem.
Andrews [41]

The food chain and food web are used to transfer energy. Plants, who are the primary energy providers in the ecosystem, use their chloroplasts to collect sunlight, which is then partially converted into chemical energy during photosynthesis.

a)

  • When herbivores eat (are the primary consumers of) plants as food, this energy is transferred to the primary consumers in the food chain.
  • This energy is stored in various organic products in plants. Then, the chemical energy contained in plant products is converted into kinetic energy, degrading the energy by turning it into heat. The secondary consumers come next.
  • Further deterioration will occur when these herbivores are consumed by secondary consumers.
  • Finally, energy will once more be destroyed when tertiary consumers eat the carnivores. As a result, the energy flow is only in one direction i.e., unidirectional.

b)

  • Additionally, the energy flow in a food chain adheres to the 10% law.
  • This law states that only 10% of energy is transferred from one trophic level to the next, with the remaining 90% being lost during the digestion process of the organism itself.

c)

  • There are typically fewer organisms at the top of an energy pyramid because It has the least quantity of energy, the top level of an energy pyramid has the fewest organisms.
  • Most ecosystems only have four trophic levels because there is eventually insufficient energy to maintain further trophic levels.

d)

  • For instance, let us assume that a plant at the producer level produces 1000 Kcal of energy.
  • When a primary producer eats this plant, it will only get 10% of the energy produced by the plant i.e., 1000/10 = 100 Kcal. the rest 90% will be used up by the plant itself for its metabolism.
  • Further when a secondary consumer eats the primary consumer, it will only get 10% of the energy produced by the plant i.e., 100/10 = 10 Kcal.
  • Lastly, as the tertiary consumer eats the secondary consumer, it will only get 10/10 = 1kcal.

learn more about ecosystem here: brainly.com/question/842527

#SPJ10

4 0
2 years ago
Which are examples of short-term environmental change? Check all that apply.
yawa3891 [41]

Answer:

tsunamis

El Niño

Explanation:

The reason why it is theses is because tsunamis are just waves and the water can go back to the oceanor dry up and its not the last 3 because the valcano's are pretty much permenet and glabal warming is bad too!

6 0
3 years ago
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How to eliminate negative self-talk
kirill [66]
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3 0
2 years ago
How is the <br> human life in humid continental
Vedmedyk [2.9K]
Humid continental climate<span>, </span><span>major </span>climate<span> type of the </span>Köppen classification<span> that exhibits large seasonal </span>temperature<span> contrasts with hot summers and cold winters. It is found between 30° and 60° N in central and eastern </span>North America<span> and </span>Asia<span> in the major zone of conflict between polar and tropical </span>air masses<span>. Along with the </span>continental subarctic climate<span>, the humid continental climate is a primarily Northern Hemispheric phenomena, since landmasses are absent at the significant latitudes in the Southern Hemisphere.</span>
4 0
3 years ago
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