Answer:
The arrow is pointing to the <em>nucleus</em>
.
The function of this organelle that it <em>controls the activities of the cells</em>
.
Explanation:
Hope this helps, have a great day!
Answer:
Option D, Zinc is higher on the activity series because there is clear evidence of a reaction.
Explanation:
It is very clear that a metal which is higher in activity will replace a metal having lower activity.
Since, Zinc has higher activity than copper, it is very sure that it in a copper chloride solution it will replace copper and produce zinc chloride solution leaving behind copper as residue.
Residues of copper is a clear evidence of reaction
The chemical equation for this reaction would be -
Hence, option D is correct
The right option is Tuberculosis
Tuberculosis is a contagious, airborne
disease of the lungs caused by the bacterium; Mycobacterium tuberculosis. The
bacteria is released from the lungs into the air when an infected person sneezes,
spits, or cough and this makes the disease highly contagious as it can be easily
transmitted to others.
Answer:
Double circulatory system
Explanation:
I do not see any diagram, so forgive me if I am wrong, but if we are talking about the circulatory system of a human, that is a double circulatory system.