18. During meiosis, homologous chromosomes exchange genetic material. This exchange of

16. Which statement is not true of an ecosystem F. Organism develop adaptations to survive

cluponka [151]

Answer:

G

Explanation:

3 0

3 years ago

what possibly could be the sources or causes of muscle weakness that a healthy young person is experiencing progressivly over la

marishachu [46]

Answer:

There are many unhealthy activities which are carried out by the millennial's in recent years, which most of time leads them to unwanted and possibly dangerous consequences. It is due to lack of exercises and indulging in unethical activities. Most of the young people faces neurological and muscular disorders.

Explanation:

Muscular Weakness:

The main cause of the muscle weakness is the lack of thyroid hormone in the blood. Which is obviously due to disorder in the thyroid gland inside a human body. And the disorder is caused by the condition of the body destroying its own tissues and cells by producing anti-bodies against them which is known as Hashimoto's thyroiditis.

Symptoms:

weight gain ,
feeling cold ,
dry skin and hair,
fatigue ,
And in females the irregular or heavy menstrual periods.

2. Narcolepsy and Insomnia:

They are two main causes for muscle weakness, as they are due to irregular sleep. Most of the patients in the hospital while on bed for a long time may also experience this disorder.

3.Infectious causes of muscle weakness:

The muscle weakness is also caused by the bacterial attack on the human body system leading to some severe cases of health problems. The main causes for the muscle weakness are as below:

Influenza,Common flu: The influenza, flu can cause some temporary muscle problems inside the body.
Syphilis: A sexual transmitted diseases(STD), which is contracted by the person through contact with the effected person or patients. It also causes muscles weakness.

4.Spinal cord injuries:

Any severe damage ti the

8 0

3 years ago

If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, what features

const2013 [10]

Answer: A plasma, membrane, DNA and ribosomes

Explanation:

3 0

1 year ago

What is the identity of a sample that has a volume of 1.96 cm3 and a mass of 17.6 g?

Lisa [10]

Answer:

The chemical equivalent of copper and zinc are 32 and 108 respectively. When copper and silver volta...

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A Piece of brass (alloy of zinc and copper) weighs 12.9 g in air. When completely immersed in water ...

The coefficient of apparent expansion of a liquid in a copper vessel is C and in a silver vessel S. ...

A silver and zinc voltameter are connected in series and a current i is passed through them for a ti...

The atomic weight of silver and copper are 108 and 64. A silver voltameter and a copper voltameter a...

Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of `10...

A silver and a copper voltameter are connected in series with a 12.0 V battery of negligible interna...

A silver and copper voltameter are connected in parallel to a 12V battery of negligible resistance ....

A silver and copper voltameter are connected in series with 12 V battery of negligible resistance .I...

The coefficient of apparent expansion of a liquid is C when heated in a copper vessel and is S w...

A block of wood weight 4kg and has a relative density of 0.6 it is to be loaded with lead so that ...

For what time must a currect of 2.5 Apass throgh zinc sulphate solution to de- posit 2 g of zinc EC...

A silver and a copper voltameter are connected in series with a 12.0V battery of negligible resis...

Calculate the currect required to deposit 1 g copper in 30 minutes in a voltmeter contaning cupric s...

One ampere current flows for one minute through a silver voltameter. It deposits 0.067 g of silver o...

A bimetallic strip of thickness 2cm consists of zinc and silver rivetted together. The approximat...

A current of 5A is passed fir 5hours through three voltameters arranged in series, containing soluti...

Silver and copper voltmeters are connected in parallel with a battery of emf 12V. In 30 minutes,...

The constants aandb for the pair silver-lead are 2.50μV∘C−1and0.012μV∘C−2 resp...

7 0

3 years ago

Read 2 more answers

why is tetracycline selectively toxic against bacteria Eukaryotic cells will enzymatically destroy the drug. Eukaryotic cells wi

IrinaVladis [17]

Answer:

The correct answer is The drug binds to the 30S small ribosomal subunit eukaryotes have 40S small sub unit.

Explanation:

Tetracycline belongs to broad spectrum antibiotic.Tetracycline is named so because it contain a derivative of four hydrocarbon rings.

Tetracycline act by inhibiting the protein synthesis process in prokatotes by binding to the small ribosomal subunit also called 30S subsunit and blocks the binding of amino acyl tRNA to the A site or attachment site of ribosome.

As eukaryotes contain 40S ribosomal subunit,it becomes difficult for tetracycline to bind with 40S ribosomal subunit of eukaryotes.

6 0

3 years ago