STS

Invention of airplane

Wright Brothers

Father of Continental Drift Theory

Alfred Wegener

energy stored in food or fuel

chemical energy

What is the process of change from an agrarian and handicraft economy to one dominated by industry and machine manufacturing?

A. Technological Innovation

B. Transportation Innovation

C. Factory System

D. Industrial Revolution

D

The application of scientific knowledge for practical purposes

technology

Following the Kyoto Protocol, what needs to be reduced through global advocacy to protect the ecological environment?

A. Waste product dumping

B. Green house emission

C. Water Pollution

D. Forest denudation

B/D

What is the product of biotechnology that has existed even before industrial age?

A. Synthetic medicine

B. Chemical Pesticide

C. Leavened bread

D. Vitamin C

C

Modern Taxonomy

Carl Linneus

Ancient Taxonomy

Aristotle

The laws of heredity were the results of the study of

Gregor Mendel

This is TRUE of recessive genes

A. have more superior phenotypic traits

B. will prevent a dominant gene from expressing its phenotype

C. should be paired with a dominant gene for it to be expressed

D. will only have phenotypic expression if present as a homozygous genotype

D

Ema is a carrier of cystic fibrosis, an autosomal recessive disorder. This means that she

A. manifests all the signs and symptoms of the disease

B. has 2 defective genes only

C. has 2 normal genes

D. has 1 defective gene only

D

There are eight levels in the hierarchy of

A. plant order

B. sea anemones

C. animal kingdom

D. biology taxonomy

D

Zebra, horses and donkey have similar characteristics because they belong to the

A. Taxonomy

B. Species

C. Rank

D. Genus

D

Mammalia is to _____, as primate is to ______

class

order

A living organism thrives best in its

habitat

An orchid attached to a tree branch is an example of ____.

A. osmosis

B. parasitism

C. commensalism

D. predation

C

The term that refers to the concept that all species from various sources no matter how small have an important role to play is

A. biodiversity

B. bioscience

C. biodegradability

D. agritechnology

A

What organism is known as a natural genetic engineer?

A. virus

B. molds

C. agrobacteria

D. plasmodium

C

What is the waste product of photosynthesis

Oxygen

Because it will adversely affect the population's food supplies, the most DISADVANTAGEOUS source of energy is

A. wind

B. sun

C. geothermal

D. plant

D

The two waste products of the citric acid cycle are

A. hydogen and nitrogen

B. water and carbon dioxide

C. carbon dioxide and hydrogen

D. water and nitrogen

B

Knowing how important forests are, governments regulate strictly

A. hunting

B. mining

C. fishing

D. logging

D

The major concern about the global warming arises from increased concentration of

greenhouse gases

The thinning of ozone layer is due to the use of

A. weed killers and insecticide sprays

B. hydrocarbons like gasoline

C. mercury in gold mins

D. refrigerant and aerosol sprays

D

The dissolving action of the ground water produces certain surface features that often develop a characteristic type of landscape called

A. natural bridges

B. karst topography

C. fluted limestone

D. sinkholes

D

A child at the top of a slide, a ripe guava before it falls, a yoyo before it is released are examples of potential ______ energy

gravitational

Mirage is optical illusion caused by

A. optical focus

B. combustion

C. electrolyte

D. cellular reaction

A

What is a very hot gas of nuclei and electrons called?

A. tokomak

B. plasma

C. laser

D. ideal gas

B

Light is fastest to travel in

vacuum

sound travels fast in

solid

What element can't be broke

air

Apparently, the loss of weight of objects immersed in a fluid is due to

A. Archimedes principle

B. Specific gravity

C. Newton's theory

D. Bouyant force

D

Ecosystem is the relationship between the physical and biological environment in a certain plain. Among desert ecosystems, the world's largest ecosystem is

A. Sahara

B. Tianshan

C. Sonoran

D. Antarctica

D

The aurora borealis and aurora australis are caused by the interaction between charge particles and Earth's magnetic field. What layers of earth's atmosphere contains these particles?

A. Exosphere

B. Mesosphere

C. Ozonosphere

D. Thermosphere

D

The approximate distance of the earth from the sun

A. 146.9 million cm

B. 149.6 million km

C. 149.6 million cm

B. 146.9 million km

B

An element which is widely used in industry as a purifier

carbon

Organisms that decompose substances into products that can be useful are called

A. saprolites

B. carnivores

C. saprophytes

D. herbivores

C

The beneficial effect of scientific development on medicine is

A. control of diseases

B. access to information

C. research capability

D. information dissemination

A

Refers to a disorder which muscular control and coordination are impaired dur to brain damage

A. ADHD

B. cerebral palsy

C. dyslexia

D. dysphasia

B

Is believed to be the most important metallic element in industry

A. iron

B. sulfur

C. sodium

D. magnesium

A

What is the most abundant inorganic compound

A. oxygen

B. hydrogen

C. water

D. nitrogen

C

hair and fingernails are made up of what substance

keratin

Is a compound of nitrogen and hydrogen

A. iron

B. calcium carbonate

C. nitric acid

D. ammonia

D

A deformity involving one foot or both

club foot

Which antidote would have a similar effect if vinegar or citrus juice were not available?

A. milk

B. vegetable oil

C. raw egg white

D. water

A/C/D

Kingdom plantae includes which organism

A. prokaryotes

B. magnolidae

C. fungi

D. protozoa

B

This Ph hero is also a scientist. He studied pharmacy and was commissioned by the Spanish government to study tropical and communicable diseases.

Antonio Luna

A forest suffered from wildfires and destroys the existing vegetation; however, the soil remained viable. 5 years later, trees and bushes are seen flourishing in the forest once again.

A. primary ecological succession

B. tertiary ecological succession

C. quarternary ecological succession

D. secondary ecological succession

D

An atom of silicon has a mass number of 28 and an atomic number of 14. How many protons are in this atom.

A. 28

B. 12

C. 7

D. 14

D

The energy source which is not sustainable

A. water

B. sun

C. wind

D. coal

D

Plants give off ____ at night

carbon dioxide

What are the openings in lead surfaces called

stomata

The major source of energy on earth is the

sun

This is a scientific approach to seeking knowledge that involves forming and testing a hypothesis and used to answer questions in a wide variety of disciplines

scientific method

This is the freedom of man to carve his own destiny and to legislate his own flaws, free from the shackles of a God that monitors and controls.

Humanism

The union of an ovum and a sperm inside a test tube is called ____ fertilization

in vitro

Perfumes contain organic compounds called ___

esters

Who developed the magnitude scale that is used to measure the strength of earthquake?

Charles Richter

Who developed vaccine for rabies?

Louis Pasteur

Element X has an electron configuration of 1S2 2S2 2P2. Based on information, element X belongs to an/a ______ family.

A. inert gas

B. coinage

C. halogen

D. alkali metal

B

Society determines on what scientific and technological projects it's resources should be spent and vice versa, science and technology contribute modern products and process to society. Such relationship is

A. distinction

B. reversible

C. cooptation

D. reciprocal

D

Yeast which is used in making alcoholic drinks and in helping the dough rise for baking is a type of

A. amoeba

B. fungus

C. algae

D. mushroom

B

What demonstrates the feeding connections between all life forms?

A. biochemical pathway

B. nutrition cycle

C. food web

D. food cycle

C

Which of the ff is an example of a useful function for bacteria

A. may be pathogenic and cause human disease

B. can clean up an oil spill by digesting hydrocarbons

C. may be used as vectors to introduce proteins into cells

D. can synthesize new forms of heavy metals

B

All of the ff are primary sources of energy EXCEPT ONE

A. sun

B. wind

C. coal

D. heat

D

The interconnections of social and environmental injustices between rich and poor nations is demonstrated by:

A. rich nations' toxic waste disposal to poor countries

B. desertification of verdant regions

C. extinction of endemic flora and fauna

D. temperature warning and rise of sea levels

A

Which of the following is INCORRECT about the PH Nanotechnology R and D Roadmap?

A. The PH aimed to provide ICT and semiconductors for local clients

B. The PH aims to develop nanosensors for environmental applications

C. The PH aimed to fabricate supercapacitors using indigenous textiles as materials

D. The PH aimed to develop several materials for engineering and industry using nanoclays, nanotubes, and nanofibers

A

The body of knowledge including the process by which knowledge is developed is _____.

science

The branch of Physics that deals with the transfer of energy from one place to another is

thermodynamics

The beneficial effect of scientific development on agriculture is

A. increased crop yield

B. wetland conservation

C. control of infection

D. reforestation

A

The best reliable source of scientific knowledge is

empirical study

If the speed of a moving object is doubled, which quantity also associated with the object must double?

A. momentum

B. gravitational potential energy

C. acceleration

D. kinetic energy

A

"Eukarya" is a _________.

domain

He first introduces the two key concepts of taxonomy: classification of organisms by type and binomial definition. Founder of taxonomy

Aristotle

A mango tree planted beside an avocado tree shows the relationship of

competition

Branch of Physical Science that deals with the transfer of energy from one place to another is

thermodynamics

Branch of biology that deals with the study of classification of organisms is called

taxonomy

The double helix structure of DNA was discovered by

James Watson

Francis Crick

Which of the ff is a fat-soluble vitamin

A. vitamin B

B. vitamin C

C. potassium

D. vitamin A

D

The hair-like structure found in many cells that aid in the movement

cilia

How many sodium atoms are in 2 moles of sodium

A. 22

B. 1.20 x 10^24

C. 6.02 x 10^23

D. 11

B

2 moles Na×6.022×1023 atoms/mol=1.2044×1024 atoms

Correct name for the compound CuS

Copper (II) sulfide

In which organelles of both plant and animal cells does aerobic respiration take place?

mitochondria

Which of the ff layers of the atmosphere participates in the hydrologic cycle?

A. Troposphere

B. Stratosphere

C. Thermosphere

D. Mesosphere

A

In ecosystem, which is an abiotic factor?

A. lichen

B. fungus

C. algae

D. water

D

Branch of Physics that deals with the study of electromagnetic force like electric fields, light and magnetic fields.

Electromagnetism

Which of the ff is not considered as a reproductive cell

A. gamete

B. somatic cell

C. egg cell

D. sperm cell

B - any cell except for sperm and egg

Air pollutants are reproduced chiefly by

A. burning of fossil fuels

B. acid rain formation

C. thermal inversion

D. Acid disposition

A

Who conceived the first recognizable periodic table?

Dmitri Mendeleev

increasing atomic weight

How many elements are there in periodic table?

118 elements

Famous equation E=mc^2 and theory of relativity

Albert Einstein

Equation for energy

E=mc^2

What is c in the equation of energy?

speed of light

Noble prize of Albert Einstein in Physics

photoelectric effect

Who discovered new elements PORA?

Marie Curie

PORA meaning

polonium

radium

Laws of Motion and Gravitation

Isaac Newton

Famous book of Issac Newton

Principia

Father of Theory of Evolution

Charles Darwin