Answer:
Option (3)
Explanation:
The primary succession is usually defined as a type of ecological succession where the living species such as plants, animals, and microbes adapts to a completely new environment, which was never occupied by any other living organism. Those species colonizing initially in these newly explored areas are considered as the pioneer species. For example, lichens and bacteria.
The rocks that are formed from the solidification of magma on the surface, sand dunes and other rocks that are recently polished by the retreating glaciers are some of the areas where these pioneer species exist.
Thus, the correct answer is option (3).
Bladder, I believe. But they are saying that my answer must be 20 Characters long...
Answer:
Yersinia pestis is the causative agent of plague
Explanation:
Rodents, such as rats, carry the disease. It is spread by their fleas.
To test if the chickens lacked thiamine the scientist could test the blood concentration of thiamine in the chickens on a future study, unless blood samples were taken during the original study.
In any future studies, the same experiment would need to be done but with this added measurement on both the control group and the test subjects.
<span>Pod refers to
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