It is extremely useful for geologists, because most specimens of a given mineral are very close to the same hardness. ... So, we can conclude that not all the rocks are hard, and the hardness of rocks depends on how the atoms of the rock's minerals are bound to each other and how they are arranged.
Metals are malleable
Metals are ductile
Metals are good heat and electricity conductors
Metals lose electrons in reactions.
When you rub a ballon in your hair.
Answer:
The correct answer is cells can do more in less time.
Explanation:
Human body has developed specialized cell so that specific cells can carry out specific functions of the complex human body system.
Each body cells are specialized for their specific function for example heart cells act as pump,lung cells helps in gas exchange,blood cells helps in transport of biomolecules,muscle cells helps in the contraction and relaxation.
Thus the numerous functions of human body are divided among specific cell so that each cell will have low work load and can carry out their specific functions in less time.
Answer:
<u>True</u>
Explanation:
There are <u>two components of efferent/motor nervous system</u>.
1.<u>Autonomic Nervous System</u>
It innervates the<u> smooth muscles, glands and cardiac muscles and is under involuntary control. ANS is further divided into Sympathetic nervous system and parasympathetic nervous system.</u>
It is composed of<u> preganglionic neurons</u> and <u>postganglionic neurons</u>. <u>The axons of preganglionic neurons synapse on the cell bodies of postganglionic neurons. </u>
Autonomic ganglia of sympathetic nervous system form the paravertebral ganglia (long chains on either side of spinal cord) and autonomic ganglia of parasympathetic nervous system are located close to the organ which the fibers innervate.
<u>2. Somatic Nervous system</u>
It is responsible for<u> voluntary control of skeletal muscles and is composed of motor nerve and the innervated muscle.</u>
