Greenhouse gases(also known as GHGs) are gases in the earth's atmosphere that trap heat, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals.
The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and some is absorbed and re-radiated by greenhouse gases.
The answer to this is inherited mutation.
Inherited mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.
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The
first observation was that, natural selection might itself be variable because
it is dependent with the different seasons the environment have. Second, the
frequency of small-beak depth Geospiza fortis became lesser on an island when a
large-beak-depth was introduced because the large-beak-depth species has
greater survival rate especially during dry season were they can eat larger and
harder seeds as compare to the small-beak-depth birds.
A) cellular respiration because fermentation takes place without oxygen(anaerobic)
