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Dennis_Churaev [7]
3 years ago
15

Are all cells the same size?

Biology
2 answers:
Natasha2012 [34]3 years ago
8 0

Answer:

All cells are a similar shape, yet not all cells are a similar size.

Explanation:

il63 [147K]3 years ago
4 0

Same shape, but not the same size.

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What factors will effect how much gravity<br> accelerates a falling object?
hammer [34]

Answer:

Mass and distance

Explanation:

Gravity is the force that gives weight to objects and causes them to fall to the ground when dropped. Two major factors, mass and distance, affect the strength of gravitational force on an object. You witness the first factor in everyday life - more massive objects are heavier.

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3 years ago
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According to Nutton, we are unable to identify any diseases familiar to us today because because we are hampered by the great di
kiruha [24]

Answer:

According to Nutton, we are unable to identify any diseases familiar to us today because we are hampered by the great difference between ancient and modern understanding of the concept of 'a disease'.

The evidence or claim he makes to support this, is in his book "Seeds of Disease" where he states that during the ancient medicine practice, the interpretatation was not held nor rigorously or strict, employing words far looser metaphoric sense, interchangeably with what they had known from Galen instead.

Explanation:

Professor Vivian Nutton specialises in the history of the classical tradition in medicine, from Antiquity to the present, and particularly on Galen. He is currently co-editor of Medical History.  Heirs of Hippocrates , how they exercised their influence, and how they were received and interpreted over the centuries, are fascinating stories. It was taken over and translated into Latin, Arabic, Hebrew and a range of European languages.

His main work has focused around Galen of Pergamum (129–216/7 AD), the most prolific writer to survive from the ancient world, whose combination of great learning and practical skill imposed his ideas on learned doctors for centuries, and, secondly, on the development of medical ideas and practices in the Renaissance of the sixteenth century.

8 0
3 years ago
I need help on this question in biology and biology is hard and confusing
Yuliya22 [10]

Answer:

b. the new species must be unable to breed with the original species.

Explanation:

By definition, species are defined as groups of similar organisms that can live and breed freely. This means that individuals in that species can interbreed and produce viable, fertile offspring. However, two different species cannot interbreed to produce fertile offspring due to biological barriers known as mechanisms of reproduction isolation.

These barriers are broadly classified as pre and postzygotic. Prezygotic barriers include the following:

  1. Habitat isolation: Two species occupy entirely different and distant habitats.
  2. Temporal isolation: Two species  procreate at different times of the year.
  3. Behavioral isolation: Two species exhibit different mating behaviors.
  4. Gametic isolation: The gametes of the two species cannot fertilize.
  5. Mechanical isolation

Speciation, the production of an entirely new species, requires a maintenance of genetic diversity. Therefore, the new and original species cannot interbreed as this would limit the gene pool and decrease genetic variations.

4 0
3 years ago
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What is the difference between gene and an allele
Dmitry [639]

Answer:

A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. For example, the gene for eye color has several variations (alleles) such as an allele for blue eye color or an allele for brown eyes.

Explanation:

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3 years ago
The degree in which materials are able to flow freely through a cell's membrane is known as
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Peremeability ,<span>Water can pass freely through the cell membrane.</span>
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