There are two types of succession that lead to the increasment of the ecosystem:
1. Primary succession is the change in the structure of an ecosystem represented with the increase of the ecological community on an area that has not been previously occupied by an ecological community such as area after the lava flow or glacial lake. The first organisms of primary succession are pioneer plants usually, lichens and mosses.
2. Secondary succession includes the step of removal of pre-existing community and after that, colonization of the new one.
Answer:
C. Primers are short sequences that allow the initiation of DNA synthesis.
8. light and dark purple, rose pink, colourless, green, yellow orange, smokey...
9. Russia...
10. largest copper mine is found in Utah... copper is mostly used in electrical generators and motors and for electrical wiring, this is because it is such a good conductor of electricity...
11. titanium is mainly mined in Western Australia... it is used in the medical field for implants and replacement such as hip bones...
12. lead from pencils is found in your home..it is know as Galena and is mined in USA...
hope this helps you alot!!
