The answer i think is gene and i can garantee
it is correct
Biologists do not fully understand DNA because there are constant changes and new discoveries developing.
Food is the most important source of chemical energy for living things. The chemical energy in food is converted, or changed, by the body into moving mechanical energy and heat energy. People have invented ways to use the chemical energy of substances to power machines.
Because the moon is significantly smaller than earth,
Its gravitational pull is also smaller and weaker.
So he weighed much less on the moon than he did on earth because of the change in gravity
Answer:
introducing a statement or idea which reverses one that has just been made or referred to.
Explanation:
