boiling point decreases as pressure increases c. boiling point increases as pressure decreases b. thrust 27) The pressure cooker works under the principle that? a. 360 26) It is the distance traveled by the body per unit time and tells how fast or slow the body moves. attract and liquefy 25) The average temperature was recorded at 35 degrees C. pressure 24) When gaseous molecules are compressed, they tend to? a. monomers 23) Describes the force of gravity of an object. oxidants 22) Compounds with the same molecular formula but with different structural formulas. pressure 21) It is the complex mixture of pollutants. shape 20) The process of spreading out spontaneously to occupy a space uniformly. cyclotron 19) Which property does NOT identify a chemical system? a.

all of the above 18) Instrument which measures the specific gravity of liquids.

its polar bond have unsymmetrical charge distribution d. its positive and negative charges are at different places b. zinc oxide 17) A molecule is said to be polar or dipolar if? a.

respiratory and endocrine systemġ6) Which of the following is NOT a compound? a. habitat 15) Coordination and integration of the body activities of man are under the direct control of the? a. predation 14) Taxonomy is the study of the classification of organism based on their? a. presence of sunlight 13) What relationship exist between a bangus and tilapia in the fishpond? a. alcohol is formed 12) What will cause the process of respiration to stop? a. hormones 11) Which of the following does NOT occur to both respiration and fermentation? a. stamen and ovules 10) These are cellular secretions which help regulate the breakdown and buildup of various substances in the body. system 9) Male and female reproductive parts of a flower: a. mitochondria 8) The smallest part of a living thing which performs all the processes a living organism does. pollen grain 7) The development of egg without fertilization is called: a. energy, air and water 6) In flowering plants, fertilization takes place in the? a. deotrixyl nucleic acid 5) What are the 3 products of oxygen when it has been burned? a. amino acids 3) The growth of roots towards water is an example of? a.

by controlling blood pressure 2) Nitrogen compounds known as the building blocks of proteins. NATURAL SCIENCE (6) 1) How does hormones work? a.

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