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Eva8 [605]
2 years ago
12

Which statement is correct about rough ER and smooth ER?

Biology
1 answer:
jeka57 [31]2 years ago
7 0
You didnt insert the photo or the options so i really dont know how to answer that sorry :(
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Variation occurs when chromosomes are shuffled in _____.
Illusion [34]

Answer:

fertilization

Explanation:

this often results in genetic variation as well :)

8 0
3 years ago
Which is the highest population density of grasshoppers?
LenKa [72]

35 grasshoppers/10 square meters has the highest population density.

  • The highest population density of grasshoppers is 35 grasshoppers/10 square meters because more number of organisms are present in less area as compared to other population density.
  • In the option i.e. 40 grasshoppers/20 square meters and 50 grasshoppers/30 square meters have more number of organisms but the area is also greater.
  • And we know that high population density means more number of organisms in less area so we can conclude that 35 grasshoppers/10 square meters has the highest population density.

Learn more about density here: brainly.com/question/6838128

Learn more: brainly.com/question/25941927

7 0
3 years ago
Which cell components are responsible for giving the cell its shape and support?
IgorLugansk [536]

Answer: Cytoskeleton and cytoplasm

The cytoskeleton is a network of microfilaments that provide structure and support for the cell. You can think of them as the pillars/columns that hold up a house.

The cytoplasm is the aqueous fluid that fills the inside of the cell. This fluid is very important for giving a cell is shape/support. If the cytoplasm was drained out of a cell its shape would collapse like a water balloon losing its water.

5 0
4 years ago
Read 2 more answers
Meiosis reduces chromosome number and rearranges genetic information. Explain how the reduction and rearrangement are accomplish
Alisiya [41]

Answer:

Explanation:

Meiosis is a form of cell division that occurs in the sex cells of organisms. It ensures the reduction of a diploid cell to an haploid cell to allow for the formation of a diploid zygote after fertilization (contribution of both parents haploid sex cells to give a diploid zygote). Thus, this process is very essential and important.

The reduction is accomplished by 2 divisions after the duplication of chromosomes

- first division: separation of homologous pairs of chromosomes (this reduces the total in half)

- second division: separation of sister chromatids of a chromosome.

The rearrangement in meiosis occurs by crossing over/genetic recombination.

This is the exchange of genetic material between homologous pairs of chromosome bringing about a rearrangement and genetic variation

An example of a chromosomal abnormality that arises as a result of defects in this process is the Down Syndrome which is caused by a nondisjunction of the chromosomes 21 pair in a sex cell.

This condition produces offsprings that have some characteristic facial features, short stature etc

6 0
3 years ago
What do lithium carbonate, carbamazepine (tegretol), and valproate (depakote) have in common?
NemiM [27]

All the mentioned drugs are mood-stabilizing drugs.

A mood stabilizer refers to a psychiatric pharmaceutical drug used in the treatment of mood disorders featured by sustained and intense mood shifts, usually borderline personality disorder, bipolar disorder type I or type II, and schizoaffective disorder.

The term mood stabilizer does not illustrate a mechanism, however, an effect. More accurate terminology is used to categorize these agents.

8 0
3 years ago
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