Pros of gene therapy -
1.Gene therapy is a source of hope
2.The effects of therapy are long lasting and timeless
3. Gene therapy can eradicate disease and improve the quality of life
The cons of gene therapy
1. There is no guarantee and it can go wrong
2. Gene therapy is a costly treatment option
3. There is a potential for developing resistance
4. Ethical concerns
The best answer is C.
The outermost covering of plant cells is called the cell wall. It is made up cellulose, is rigid and can be seen under a light microscope. It is absent in animal cells.
The outermost covering in animal cells is the cell membrane. It is made up of lipids, proteins, and small amounts of carbohydrates. It is a thin and delicate structure that can only be seen under an electron microscope.
Plant cells have both cell wall and cell membrane
Answer:
<u>d. Skeletal muscle</u>
Explanation:
There are two components of efferent nervous system.
- <u>Somatic nervous system</u>
- <u>Autonomic nervous system</u>
<u>SOMATIC NERVOUS SYSTEM:</u>
Somatic nervous is one of the components of efferent/motor nervous system.
It controls <u>voluntary activities</u>. It involves the <u>control of skeletal muscles</u>.
It is composed of <u>the motor neuron and the innervating muscle</u>.
<u>AUTONOMIC NERVOUS SYSTEM:</u>
Autonomic nervous system is the other efferent/motor system of the body. It controls the <u>involuntary activities</u>. It involves the control of <u>cardiac muscle, glands and smooth muscles</u> of the body.
It is composed of<u> 2 neurons; preganglionic and postganglionic neurons.</u>
Autonomic nervous system is further divided into:
- Sympathetic nervous system (it is responsible for flight and fight responses)
- Parasympathetic Nervous system (it is responsible for rest and digestion)
- Enteric division ( controls Gastrointestinal system)
<u>QUESTION:</u>
<u>d. skeletal muscle</u>
This is the correct answer choice as skeletal muscles are not controlled by autonomic nervous system. They are controlled by somatic nervous system and are under voluntary control.