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jeka94
2 years ago
13

I only appear in animal cells, and only during cell division. I guide chromosomes through the process. Who am I?

Biology
1 answer:
Irina-Kira [14]2 years ago
8 0

Answer:

Centrosome

Explanation:

Answer is the centrosome

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Type of diffusion that occurs with the help of a protein is called
Soloha48 [4]

Answer:

<h2>Facilitated diffusion .</h2>

Explanation:

1. Diffusion: it  is the net passive movement of particles from  higher concentration to lower concentration. Diffusion continues until the concentration of substances is equal through out.

 

2. Facilitated diffusion: is the  process of passive transport of molecules or ions across a biological membrane and requires (via) a specific carrier protein.

3. Facilitated diffusion is passive type and require specific protein and it  requires no energy from the cell.  

4. It requires specific proteins through which molecules move from one side to another.

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3 years ago
When a 9:3:3:1 ratio of phenotypes is produced by a cross between two individuals, which phenotypes are present in the rarest cl
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The answer is Both features have a recessive phenotype in these offspring.

An individual's phenotype is defined by their genotype and expressed genes, as well as apparent traits such as hair colour or type, eye colour, body shape, and height. It is determined by the genotype, but it is also modified by environmental circumstances.

What is genotype?

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3 0
2 years ago
1 How was the Flowing Water Model similar to
Vedmedyk [2.9K]

Answer:

Flowing water model is a computer program not the real earth ecosystem.

Explanation:

  • The flowing water model is a simulated computer program that integrates the land, aster, and groundwater-surface systems and can calculate the demand for each land-use type.  
  • Such as agriculture, urban, native, and natural vegetation. It's similar to that of earth's flowing water as it based on the simar feature of the water system as of earth.
  • Due to its just a simulation or model its cannot predict the varieties of the monsoon and ned's a single one-dimensional flow through a network that is set to incorporate time. But the earth is an unpredictable and dynamic system.

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What is the difference between endocytosis and exocytosis?
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3 years ago
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Which of the following is an example of an Earth process being used to measure geologic time?
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<span>C.)The average rate at which a mountain range rises each year is used to estimate how long ago the range began to rise.

Since geological time and movement takes place over a huge amount of time, most geologist measure the geological time by taking the average rate of almost all the sample and compare. </span>
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