Which of the following is true about genes?
a.
genes are made up of smaller molecules known as chromosomes.
b.
the genes of a particular organism can never change throughout its lifetime.
c.
genes are responsible for all the traits of an organism.
d.
in humans, genes are passed to an offspring from two parents.

D. In humans, genes are passed to an offspring from two parents.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.