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nexus9112 [7]
3 years ago
10

Is fluorine an atom cation or anion

Biology
1 answer:
lesya692 [45]3 years ago
3 0

Fluorine.... is an anion

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In normal humans, sex cells contain the _________ number of chromosomes.
Nadya [2.5K]

Answer: Haploid number

In normal humans, sex cells contain the diploid number of chromosomes

Explanation;

Human somatic cells or body cells are diploid such that they contain two sets of 23 chromosomes which gives a total of 23 chromosomes. Examples of somatic cells in the body that are diploid include, epithelial cells, somatic cells, liver cells, blood cells, nerve cells, etc.

However, mature sex cells are haploid, which means they have one set of 23 chromosomes which means they have 23 chromosomes. Sex cells are the results of meiosis type of cell division in which a diploid cell divides to form four daughter cells that are haploid.

3 0
3 years ago
A manager wanted to test whether the amount of noise in a clothing factory affected how
katrin2010 [14]

Answer:

When seeking to determine the number of shirts made by employees subjected to noise with and without the use of headphones, the dependent variable is the number of shirts made by the employee.

Explanation:

In a study or research, the dependent variable is the result of the intervention on the independent variable, which can be modified. In the case presented, the dependent variable is the quantity of shirts made by the employees, the number of which is measured at the end of the study.

It is expected that those employees who block the noise using headphones produce a greater number of shirts than those exposed totally or partially to noise.

For the other options:

  • <u><em>The amount of noise</em></u><em>. This can modified by the use or not of headphones and is the independent variable, subject to modification.</em>
  • <u><em>The type of music the employees listen to while they work</em></u><em>.  Does not represent dependent or independent variable.</em>
  • <u><em>The amount of training employees need</em></u><em>. It is not the variable being studied.</em>
7 0
3 years ago
Orcas, or killer whales, are natural predators of sea otters. It has been observed that in regions where the sea otters are not
olga55 [171]

Answer:

D)  Sea otters are a keystone species as they prevent a herbivorous species from completely destroying a plant species.

Explanation:

8 0
2 years ago
Which of these involves the cell membrane?<br> waste products leaving cells<br> respiration
netineya [11]
Waste products leaving the cell
3 0
2 years ago
Inhibition of transcription by lac repressor involves its binding to the promoter
viktelen [127]
Answer:
           
                  The correct option is b (false). 

Explanation:
     
                    As is is cleared from the figure that when lactose is absent, the lac repressor binds tightly to the operator. It gets in RNA polymerase's way and prevent transcription. 

8 0
3 years ago
Read 2 more answers
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