Answer: Cells typically receive signals in chemical form via various signaling molecules. When a signaling molecule joins with an appropriate receptor on a cell surface, this binding triggers a chain of events that not only carries the signal to the cell interior, but amplifies it as well.
Explanation:
<span>Instead, they have evolved chloroplasts, as a
way to generate their own carbohydrates without consuming other
organisms, by harnessing solar energy to convert carbon dioxide and
water into carbohydrates. ... Mitochondria, on the other hand, efficiently break down macromolecules, such as carbohydrates or lipids, into ATP.</span>
The vacuoles in a plant cell are much more larger and take up a large portion of the cell but animal cells vacuoles tend to be smaller. The plant cells vacuole is permanent when the animals is temporary. A plant cells vacuole is formed by budding off the membrane, the animal cells vacuole is formed by the organelle called the Golgi body.
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.
If the statue is like Lady Liberty, and overgoes a change in color and state. For example, she was originally copper, but later changed into patina due to weather such as acid rain, it is mechanical weathering. Please let me know if this helped.
