CIDESCO Exam (Natural Sciences
Portion) Questions and Answers 100%
Solved
which ones are correct?
1. Biological and non-biological substances both need oxygen for their
existence
2. the human body consists only of biological substances - ✔✔1 and 2 are
both correct
which ones are correct?
1. every living organism needs some non-biological substances for its
existence
2. all non-biological substances are found as minerals in the earth - ✔✔1 is
correct
2 is incorrect
characteristics of life include.. - ✔✔growth and metabolism
examples of synthetic substances are... - ✔✔plastics and silicones
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examples of organic biological substances are - ✔✔carbohydrates and fats
examples of mineral substances are - ✔✔paraffins and petroleum
matter is everything that... - ✔✔occupies space and has weight
the three forms of matter are solids, liquids, and... - ✔✔gases
what property does all matter have? - ✔✔all matter has weight
condensation is the change of matter from... - ✔✔gas to liquid
vaporization is the change of matter from.. - ✔✔liquid to gas
melting is the change of matter from - ✔✔a solid to a liquid
sublimation is the change of matter from - ✔✔a solid to a gas
the alteration of the prorates of matter without the formation of any new
substance is called. - ✔✔a physical change
the immediate change of a solid into a vapor is called - ✔✔sublimation
an example of a single-celled cellular organism is - ✔✔a bacterium
which ones are correct?
1. a micro-organism is the smallest part of the human body
2. all micro-organisms need nutrients for their existence - ✔✔1 is incorrect
and 2 is correct
examples of bacteria are - ✔✔bacilli and cocci