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General Education > Science > Flashcards

Science Flashcards

1
Q

A 25-year old pregnant woman is on her last month of pregnancy and has been experiencing uterine contractions every 20 minutes. The hormone responsible for having this contractions is called _____.

A

Oxytocin

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2
Q

It is best defined as a major climatologic regions with consistent inhabiting populations.

A

Biome

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3
Q

It is a massive star that has collapsed to such a small volume that its gravity prevents the escape of everything, including light.

A

Black hole

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4
Q

It is a change in state from solid to gas without passing the liquid state.

A

Sublimation

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5
Q

Animal that has a variable body temperature.

A

Cold-blooded animal

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6
Q

Animal that has fixed body temperature.

A

Warm-blooded animal

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7
Q

It is a distance light that travels in a year.

A

light-year

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8
Q

How many kilometers does a light-year travel?

A

9.5 trillion kilometers

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9
Q

It is a luminous phenomenon observed when a meteoroid enters Earth’s atmosphere and burns up.

A

Meteor

- popularly called shooting star

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10
Q

Any portion of a meteoroid that reaches Earth’s surface.

A

Meteorite

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11
Q

It is a small, solid particle that travels through space.

A

Meteoroid

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12
Q

It is a gas that is composed of free-floating ions (atoms stripped of some electrons).

A

Plasma

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13
Q

It is a group of organisms with same species that can interbreed in natural setting. Therefore, it can pass their traits from one generation to another generation.

A

Population

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14
Q

It is any quantity in physics that has magnitude, but not a direction associated with it.

A

Scalar quantity

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15
Q

It is the apparent brightness of a star if it were viewed from a distance of 32.6 light years.

A

Absolute magnitude

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16
Q

Agricultural centers have found lately varieties of coconut propagation thru _____.

A

putting up plant nurseries

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17
Q

Albino corn seedlings may grow several inches tall. However, they will eventually die, primarily because _____.

A

they cannot produce their own food

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18
Q

It is an alternative form of a gene.

A

Allele

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19
Q

It is a compound with nitrogen and hydrogen.

A

Ammonia

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20
Q

It is any formation in which groundwater rises on its own under pressure.

A

Artesian well

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21
Q

It is located in the center of an atom that contains protons and neutrons and represents most of the mass of an atom.

A

Nucleus

22
Q

This level of biological organization shows the interaction of molecules within one cell.

A

Cellular level

23
Q

These are also known as fruit-bearing plants or flowering plants.

A

Angiosperms

- Examples: tomatoes and cucumbers

24
Q

These are plants with vascular tissues, with seed inside/outside a fruit.

A

Angiosperms

25
Q

It requires no fertilization causing no variation because there is no crossing-over of chromosomes. This happens only from a single parent and producing an offspring of exact copy.

A

Asexual reproduction

26
Q

It is the study of celestial bodies such as stars, comets, planets and galaxies and phenomena that originate outside the earth’s atmosphere.

A

Astronomy

27
Q

This means that the average annual precipitation over Earth is equal the amount of water that evaporates.

A

Balance in the water cycle

28
Q

Based on this rule, Pyrimidine nitrogenous base is always complementary to cure a nitrogenous base.

A

Chargaff’s rule

29
Q

Chemist use this very small unit of mass because the mass of subatomic particles is so small.

A

Atomic mass unit (amu)

30
Q

This principle states that as the velocity of a fluid increases, the pressure exerted by the fluid decreases.

A

Bernoulli’s Principle

31
Q

It consists of particles called bosons which exists at the temperature of 0 K or -273°C with most minimum amount of energy a particle can possess.

A

Bose-Einstein Condensate

32
Q 
It is the part of the brain that controls the following activities:
• breathing 
• blood pressure 
• heart rate 
• alertness.
A

Brain stem

33
Q

What are the 3 statements of cell theory?

A
  1. All living organisms are made up of cell.
  2. Cell is the basic functional unit of life.
  3. Cells came from pre-existing cells.
34
Q

It refers to a disorder which muscular control and coordination are impaired due to brain damage.

A

Cerebral palsy

35
Q

It is a severe damage to some parts of the brain due to lack of blood supply.

A

Cerebrovascular accident

36
Q

These are properties that are only observable when the substance reacts with another substance thereby causing a change in a chemical composition of the substance.

A

Chemical properties

37
Q

It is a science that describes matter - its properties, the changes it undergoes and the energy changes that accompany those processes.

A

Chemistry

38
Q

It is a thread of DNA made up of genes.

A

Chromosome

39
Q

It is described as the lifeline of the body. It is the body’s “pickup and delivery system.”

A

Circulatory system

40
Q

It is the tendency of a mineral to break along flat, even surfaces.

A

Cleavage

41
Q

It is the relationship between an organism and a host where neither is benefited nor harmed.

A

Commensalism

42
Q

Comparing the speed of sound in liquids, gases and solids, the speed of sound is usually lowest in _____ and highest in _____.

A

Gases

Solids

43
Q

It is the study of the nature of the universe its origin and overall structure.

A

Cosmology

44
Q

These are pyrimidine nitrogenous bases.

A

Cytosine and Uracil.

45
Q

These are purine nitrogenous bases.

A

Guanine and Adenine

46
Q

It is a process in which a substance is broken to make it useful in other processes.

A

Decomposition

47
Q

The organisms that are capable of decomposing a substance for called _____.

A

Saprophytes

48
Q

Who proposed that matter was composed of tiny indivisible particles?

A

Democritus (400 BC)

49
Q

It is the driest ecosystem, very low amount of precipitation, may have very high or very low temperature.

A

Desert

* Presence of life form is none or low.

50
Q

It is the conversion of semi-arid (arid -dry) areas to absolute desert.

A

Desertification

General Education (5 decks)

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