Answer:
Chemical reaction had occurred and both the powders are different substances.
Explanation:
The type of microscope described above is the <span>phase contrast microscope. This microscope can produce high contrast images useful when observing transparent objects like living cells, microorganisms or tissue samples.
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The answer is shark,skate,ray
Answer:
The answer is B.
Explanation:
The United States has been progressively expanding towards the southwest since the start of the country.
The interrelationship between the Elodea plant and paramecia in a pond system is mutualism.
The pond system is a type of an artificial aquatic system that contains organisms (plants and animals) that are regularly maintain.
The Interrelationship between organisms which can occur in an ecosystem include:
- competition,
- predation,
- commensalism,
- mutualism and
- parasitism.
Mutualism occurs when two organisms of different species benefits from each other.
The Elodea plant purifies the water through photosynthesis and provides habitat for the paramecia
The paramecia in turn generates carbondioxide through its body surface which is a key element used for photosynthesis by the Elodea plant.
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brainly.com/question/3350498
