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Pavlova-9 [17]
3 years ago
9

1.-Identify the different ways in which evolution can occur?

Biology
1 answer:
Jobisdone [24]3 years ago
4 0
1. These four factors can effect ways evolution occur:

<span>1.) Mutation 
2.) selection
3.) Gene Flow
4.) Genetic Drift 

2.  </span>In biology, a mutation is the permanent alteration of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.

Selection, in biology, the preferential survival and reproduction or preferential elimination of individuals with certain genotypes by means of natural or artificial controlling factors.

In population genetics, gene flow is the transfer of alleles or genes from one population to another.

<span>Genetic drift  is the change in the frequency of a gene variant in a population due to random sampling of organisms. </span>
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Compared to its surroundings, the concentration of solutes is low inside a cell so, the cell is in a hypertonic, hypotonic or is
Kazeer [188]

Answer:

The cell is in a hypertonic solution.

Explanation:

The solution is hypertonic because the amount of solute(s) is higher outside of the cell than it is inside the cell, so the solvent (e.g. water) would move from the cell to the solution in order to obtain equilibrium between the two.

7 0
3 years ago
Explain in detail, the flow of blood through the heart. Someone please help
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As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body.

Blood is essential. In addition to carrying oxygen from the lungs and nutrients to your body's tissues, it also takes the body's waste, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all the body's tissues.


8 0
3 years ago
Assuming DNA is replicated correctly (so there are no mutations),
gavmur [86]

Answer:

None of the choices would lead to all identical gametes.

Explanation:

Gametes are sex cells produced by sexually reproducing organims via a process of cell division called MEIOSIS. Meiosis is a cell division process which produces four (4) daughter cells (gametes), which are genetically different from the parent cell.

The difference in genetical content is as a result of a process unique to only meiosis called CROSSING-OVER OR RECOMBINATION. This process ensures that the genetic content of the gametes are altered. Hence, since gamete formation is done via meiosis, none of the scenarios in the option will lead to all identical gametes.

7 0
2 years ago
What word is used to describe plant cells placed in a hypotonic solution?
Phoenix [80]

Answer:

The answer is Plasmolysis

8 0
3 years ago
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Beth learned in her science class that white blood cells in the human body capture harmful material by engulfing them. Then they
Andreas93 [3]
The mode of nutrition described  above is phagocytosis.
Amooba is a unicellular eukaryotes  and it obtains its nutrition using the same method. Amoeba feeds on microscopic organisms, which it engulfs, secretes into its food vacuole and digest.

5 0
3 years ago
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