The average distance between the planet to the sun is about 149.6 million km
Answer: The correct option is 
Explanation:
According to the Bronsted Lowry conjugate acid-base pair, an acid is a substance that donates protons and a base is a substance that accepts protons.
From the given options,
represents a Brønsted Lowry base as it is accepting
and
represents a Brønsted Lowry acid as it is donating
.
Answer: The body maintains homeostasis by positive and negative feedback mechanism.
Explanation:
The body maintains the internal temperature and metabolism with respect to change in environment.
In case the temperature outside is very cold and the body starts shivering by the movement of skeletal muscles, this is done to maintain the temperature inside body. This is positive feedback.
When the temperature inside the body is maintained, then body stops shivering. This is negative feedback.
This is how the body maintains homeostasis.
Advantages of asexual is only one parent is needed. Disadvantages is no genetic variation. For sexual advantages is genetic variation. Disadvantage is two parents are needed.