It impacts aquatic ecosystems and can damage the habitats of aquatic animals by blocking off their food sources with dams and the dams can interfere with mating patterns, hydroelectricity also can damage the flora and fauna by floods drowning and killing various animals and plant life and it can lead to the emissions of greenhouse gasses causing air pollution. I hope this helps.
The answer is polygenic inheritance.
Many physical characters (traits) depend on many different factors, each of which is determined by different genes. This is called polygenic inheritance.
For example, the color of the skin in humans. The color of the skin results from the interactions of several factors determined by different pairs of genes:-Certain genes could affect the metabolism of skin melanocytes.-Other genes can determine the distribution of melanin in the thickness of the skin.-Some genes could determine the relative amounts of each of the two possible types of melanin.-Others may affect the production of certain hormones involved in the activity of melanocytes.
The answer should be the third option "number of protons and neutrons." The atomic mass of a element is equal to the amount of protons, and neutrons added together in that element. So for example if we are trying to find the atomic mass of hydrogen you would add the total amount of protons and neutrons together to find it's mass although it doesn't equal the exact amount of it's mass but it's close.
Hope this helps.
<span>well i take this test before and the correct answer is :A They produce food by photosynthesis</span>
Proteins is made up of a sequence of an amion group, a carboxyl group, a hydrogen atom and a side chain bonded to the centralcarbon atom.
