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almond37 [142]
3 years ago
12

Depolarization of a cell membrane occurs because

Biology
1 answer:
Phoenix [80]3 years ago
3 0

Stimulus stimulate the sodium ion voltage gated channel to open in the axon. This allow many Na ion to enter the axon and causes depolarisation as the pd in the axon getting less negative charge (from -70mV to -50mV).

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Explain the Drawinism theory of evolution​
trasher [3.6K]

Answer:

Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics.  As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve

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Describe and experiment to demonstrate plasmolysis in spirogyra​
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When a single cell of E. coli reproduces, it first duplicates its DNA. Next, the cell elongates as each copy of DNA is pulled to
Advocard [28]

The options are:

A. They are genetically different from the parent because they are produced by sexual reproduction.

B. They are genetically identical to the parent because they are produced by sexual reproduction.

C.  They are genetically identical to the parent because they are produced by asexual reproduction.

D. They are genetically different from the parent because they are produced by asexual reproduction.

Answer:

The correct answer is- C.  They are genetically identical to the parent because they are produced by asexual reproduction.

Explanation:

<em>E. coli </em>reproduces through binary fission in which the genetic material of cell of <em>E. coli</em> first duplicates and then the cell elongates and each of the copies of their genetic material is moved to opposite poles.  

After this, the cell gets divided into two equal daughter cells. As binary fission is an asexual reproduction so there is no mixing or combination of genetic material from other <em>E.coli</em> therefore the resultant daughter cells are identical to the parent cell.

Therefore the correct answer is option c.

6 0
3 years ago
Which of the following is considered to be the broadest taxonomic division?
dimulka [17.4K]

Answer:

B. Domain

Explanation:

The broadest group is Domain which consists of Eukarya which includes the organisms that most people are most familiar with-all animals, plants, fungi, and protists

6 0
4 years ago
Read 2 more answers
Which is an example of a cartilaginous fish
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A Stingray could be an example. A shark could also be an example of a cartilaginous fish. It means any fish with cartilage.

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