Physical science is concerned with the inorganic world, including physics, astronomy, certain types of chemistry, and generally, earth sciences. If it includes non-living things, it is physical science.
In parasitism, one organism harms another organism (the host). An example would be fleas living in cats/dogs; they feed on their blood.
Therefore the answer is A is harmed, and B is helped.
A lot of cells are needed to create a living organism. infinity cells are needed
Answer:
Explanation:
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Answer:
Explanation:
Preparation of competent cells -
Transformation
recovery
plating
