Answer:
Earth's atmosphere filters out harmful radiation from the sun.
Explanation:
The sun is earth's star and sunlight helps light up and warm the earth and also helps in the process of photosynthesis. Sunlight on the other hand, produces harmful rays called Ultraviolet radiation or UV rays.
These ultraviolet radiation is dangerous to our skin and ultimately our body as a whole. Fortunately for us, the earth's atmosphere has a protective layer called the Ozone layer. The Ozone layer serves to filter out and block the harmful ultraviolet radiation and prevent it from reaching the earth, thereby protecting us.
Sadly though, the Ozone layer is getting depleted by human activities which emit harmful gases like carbon dioxide into the atmosphere. Activities such as oil drilling, automobile emissions, destruction of forests etc. These activities affect the Ozone layer leading to it's gradual disappearance and letting in the harmful UV rays. A phenomenon referred to as global warming.
Answer: Allopatric Speciation
Explanation:
Allopatric speciation occurs when new distinct species are formed due to the separation of a specie into two separate groups. These two groups are kept away from each other.
In allopatric speciation there is no exchange of genes between the two separate groups.
Allopatric speciation can also be known as geographical speciation.
<span>Photosynthetic pigments, which absorbs the most sunlight is chlorophyll a.
This is the most abundant pigment in plants which absorbs visible light with wavelengths of 430nm( blue) and 662nm( red). It contains a hydrophobic phytol chain (in a lipid membrane) and a tetrapyrrolic ring (outside of the membrane) that absorbs the energy from light. At the centre of the structure is magnesium, Mg that can accept and donate e-.</span>
<span>The cell could not function with 2 nuclei.
Hope this helps!
-Payshence xoxo</span>
