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forsale [732]
3 years ago
14

Which of the following describes an independent variable?

Biology
2 answers:
BaLLatris [955]3 years ago
8 0
The best sentence that describe an independent variable would be : The factor in an experiment that could be deliberately changed.
The scientist use deliberately change this factor to find out which factor actually caused the occurrence in the experiment.

Hope this helps
lana66690 [7]3 years ago
5 0

Answer:

The factor in an experiment that responds to the manipulated

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Describe how the structure of a virus aids in its ability to infect cells.
Varvara68 [4.7K]

Virulence factors of virus aids in its ability to infect cells.  

Explanation:

Virulence factors help pathogenic microbes to infect host cells by virulence mechanisms – invade host, cause and spread disease, evade the defense or immune mechanism of the host. These factors makes the virus to grow, replicate, and modify the host cells due to its toxicity.  

Viruses binds to the receptor protein of the host cell.

Different types of virulent factors are: invasion factors, adhesive or adherent factors, capsules, endo and exotoxins, etc.  

The virulence factors decides the severity and rate of spread of an infection

6 0
3 years ago
Read 2 more answers
Identify the stages of the cell cycle using the drop-
mezya [45]

Answer:

  • Label A  - G1 phase
  • Label B - S phase
  • Label C - G2 phase
  • Label D - Mitosis
  • Label E - interphase

Explanation:

Label A - G1 phase (First gap phase): during this phase, cell grows, forms more protein, RNA and copies cell organelles.  

Label B- S phase (Synthesis phase): during this phase, synthesis of DNA and its replication occurs.

Label C- G2 phase (Second Gap phase): during this phase the cell grows more, makes protein and cell organelles.

Label D – Mitosis: during mitosis the cell divides its nucleus and cytoplasm to produce two daughter cells.

Label E- Interphase :  A stage of cell growth and metabolic activity. The G1,S and G2 phases together called interphase.  

6 0
3 years ago
What is genetic engineering and important of genetic engineering​
BigorU [14]

Answer: Genetic engineering is manipulating or modication an organisms' dna or cells.

Cloning is a great example of genetic engineering.

Explanation: it is important because it is use to produce medicine such as Insulin and other vaccines for dfferent diseases.

Hope this helped :)

8 0
4 years ago
What are the 3 types of substitution mutations?.
loris [4]

Base substitutions, deletions, and insertions are the three different forms of DNA mutations.

A mutation is a long-lasting alteration to the DNA's nucleotide sequence that can occur during replication and/or recombination. Damaged DNA can change by base pair replacement, deletion, or insertion. The majority of the time, mutations are benign, unless they result in tumor growth or cell death. Cells have developed systems for repairing damaged DNA due to the deadly potential of DNA mutations.

Different Mutations

Base substitutions, deletions, and insertions are the three different forms of DNA mutations.

1. Base Replacements

Point mutations are single nucleotide replacements; you may recall the point mutation Glu ——-> Val is the culprit of sickle cell anemia. There are two types of point mutations, the most prevalent of which are.

Transition and Transversion.

Learn more about Base substitutions using this link:

brainly.com/question/15604401

#SPJ4

5 0
1 year ago
What does a plant cell have that an animal cell doesn't have?
azamat
A plant cell has chloroplasts.
 An animal cells doesn't.
4 0
3 years ago
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