Page 33 - Binder Pendampingan UTBK SAINTEK

protozoans have been identified. No doubt, as technology improves methods
of observation, better models of classification of these simple single cells will
be proposed.

9. With what topic is the passage primarily concerned?
A. Colonies of protozoa
B. The definition of mastigophora
C. Motility in protozoans
D. Characteristics of protozoans
E. The ciliata in brief

10. What does the author mean by the statement ‘They are fantastically diverse,
but three major groups may be identified on the basis of their motility.’
A. The three major groups are unique in that they all move in the same
manner
B. Everything we know about the protozoans is tied into the their manner of
movement
C. The manner of movement is critical when classifying the three major
groups of protozoa
D. Mobility in protozoans is insignificant
E. The manner of protozoans’ movement is not significant

11. What is the purpose of the large nucleus in the ciliata?
A. It generates the other nucleus
B. It contains the genetic code for the small nucleus
C. It regulates growth
D. It reproduces itself
E. It produces the other nucleus

12. Which of the followings statement is not TRUE in protozoans?
A. They are approximately 40,000 species
B. They are the most primitive forms of animal life
C. They have a large cell and a smaller cell
D. They are difficult to observe
E. They collect into colonies

Waste water, or sewage, is a menace to health because it usually
contains pathogen and other substances that contaminate food and drinking
water. It may also be offensive to the senses of sight and smell.
Industrial waste water includes liquid waste from factories and other
industrial plants. Industrial waste can be disposed of by discharging into the
body water or land. It is usually treated before disposal. The treatment
process varies with kind and amount of waste in the water.
In cities, sewage is piped to treatment plants for primary and secondary
treatment. In primary treatment, sewage flows on the holding tank. Lighter
materials, such as soil and greases, float to the surface. The material that
settles to the bottom, called sludge, is withdrawn from a tank, and the material
at the surface is skimmed off. Secondary treatment is usually biological

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