All of the above are correct.
<span>New combinations of genes may be produced by </span>immigration, mutation and sexual reproduction. These new combinations are also called variations.
Answer:
The cholodny-went model was proposed in 1927. This model explains the capability of the shoots to grow in the direction of the sunlight whereas the capability of the roots to grow downwards. The hypothesis suggested that both these directional growth occurred due to the asymmetrical distribution of the plant hormone, auxin. This model has been modified a number of times by other scientists but its general concept is accepted by most of the researchers.
Heats up and cools down more quickly than land
Contracts when it
Freezes
The answer would NOT be B for this question.
Knowing myself the answer would be A because nuclear energy would be an alternate source of energy unlike natural gas.
