The first is (D), the second is also (D)
Answer:
Explanation:
We need to find the energy produced when Sun converts 1.7 kg of mass into energy. Einstein's mass energy relation is given by :
c is speed of light
So, energy produced is 
.
Answer: The palpating heart race response is due to the sympathetic nervous system controlling the body's fight-or-flight reactions.
Explanation:
The sympathetic nervous system is in charged of controlling the body's fight-or-flight reactions. When facing a threat, these responses defaultly prepare our body to flee from danger or face the threat head-on.
Many of the physiological responses you experience during times of emotional streaming, such as sweaty palms or a racing heartbeat, are regulated by the sympathetic nervous system, a branching of the autonomic nervous system.
Answer:Exocrine glands are glands that secrete substances onto an epithelial surface by way of a duct.
I guess it is aluminium in cationic form
