Answer:
An ecosystem is a discrete structural, functional and life sustaining environmental system. ... Biotic component of the ecosystem includes the living organisms; plants, animals and microbes whereas the abiotic component includes inorganic matter and energy.
Explanation:
Answer:
Symmetry is achieved when parts of an object are arranged along an imaginary center line. Proportion is the relation of one part to another, or of parts to the whole, in respect to size, height, width and scale. Symmetry provides balance and aesthetic appeal.
Explanation:
Answer:
night time
Explanation:when its pitch dark outside
