Answer: Ecological succession is the gradual process by which ecosystems change and develop over time. Nothing remains the same and habitats are constantly changing.
There are two main types of succession, primary and secondary.
Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.
Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. For example, after felling trees in a woodland, land clearance or a fire.
Answer:
Second Question:
If a doctor prescribes antibiotics, its because the you have developed a bacterial infetcion on top of your flu or HIV for example.
Explanation:
Meiosis<span> is the process by which sexually reproducing </span>organisms<span> make their sex cells, sperm and eggs. With out this, reproduction would not happen.
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<span> Structure of cell membranes </span>
Answer:
The correct answer is - Grant's research on finches on the Galapagos islands.
Explanation:
Grant's research was made on medium-sized finches on the Galapagos islands showed evolutionary processes in real-time. He showed that due to the drought there is a decrease in the number of small and soft seeds that were finches major food source.
It is known that there are different beak sizes in this finch species, the finches with larger beaks could feed on tough and large seeds and survive in such case of the drought-induced decrease in food availability. Due to this natural selection and adaption the number of larger beaks in finches is increased over the real time.
