Science Flashcards
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 _____.
Oxytocin
It is best defined as a major climatologic regions with consistent inhabiting populations.
Biome
It is a massive star that has collapsed to such a small volume that its gravity prevents the escape of everything, including light.
Black hole
It is a change in state from solid to gas without passing the liquid state.
Sublimation
Animal that has a variable body temperature.
Cold-blooded animal
Animal that has fixed body temperature.
Warm-blooded animal
It is a distance light that travels in a year.
light-year
How many kilometers does a light-year travel?
9.5 trillion kilometers
It is a luminous phenomenon observed when a meteoroid enters Earth’s atmosphere and burns up.
Meteor
- popularly called shooting star
Any portion of a meteoroid that reaches Earth’s surface.
Meteorite
It is a small, solid particle that travels through space.
Meteoroid
It is a gas that is composed of free-floating ions (atoms stripped of some electrons).
Plasma
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.
Population
It is any quantity in physics that has magnitude, but not a direction associated with it.
Scalar quantity
It is the apparent brightness of a star if it were viewed from a distance of 32.6 light years.
Absolute magnitude
Agricultural centers have found lately varieties of coconut propagation thru _____.
putting up plant nurseries
Albino corn seedlings may grow several inches tall. However, they will eventually die, primarily because _____.
they cannot produce their own food
It is an alternative form of a gene.
Allele
It is a compound with nitrogen and hydrogen.
Ammonia
It is any formation in which groundwater rises on its own under pressure.
Artesian well
It is located in the center of an atom that contains protons and neutrons and represents most of the mass of an atom.
Nucleus
This level of biological organization shows the interaction of molecules within one cell.
Cellular level
These are also known as fruit-bearing plants or flowering plants.
Angiosperms
- Examples: tomatoes and cucumbers
These are plants with vascular tissues, with seed inside/outside a fruit.
Angiosperms
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.
Asexual reproduction
It is the study of celestial bodies such as stars, comets, planets and galaxies and phenomena that originate outside the earth’s atmosphere.
Astronomy
This means that the average annual precipitation over Earth is equal the amount of water that evaporates.
Balance in the water cycle
Based on this rule, Pyrimidine nitrogenous base is always complementary to cure a nitrogenous base.
Chargaff’s rule
Chemist use this very small unit of mass because the mass of subatomic particles is so small.
Atomic mass unit (amu)
This principle states that as the velocity of a fluid increases, the pressure exerted by the fluid decreases.
Bernoulli’s Principle
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.
Bose-Einstein Condensate
It is the part of the brain that controls the following activities: • breathing • blood pressure • heart rate • alertness.
Brain stem
What are the 3 statements of cell theory?
- All living organisms are made up of cell.
- Cell is the basic functional unit of life.
- Cells came from pre-existing cells.
It refers to a disorder which muscular control and coordination are impaired due to brain damage.
Cerebral palsy
It is a severe damage to some parts of the brain due to lack of blood supply.
Cerebrovascular accident
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.
Chemical properties
It is a science that describes matter - its properties, the changes it undergoes and the energy changes that accompany those processes.
Chemistry
It is a thread of DNA made up of genes.
Chromosome
It is described as the lifeline of the body. It is the body’s “pickup and delivery system.”
Circulatory system
It is the tendency of a mineral to break along flat, even surfaces.
Cleavage
It is the relationship between an organism and a host where neither is benefited nor harmed.
Commensalism
Comparing the speed of sound in liquids, gases and solids, the speed of sound is usually lowest in _____ and highest in _____.
Gases
Solids
It is the study of the nature of the universe its origin and overall structure.
Cosmology
These are pyrimidine nitrogenous bases.
Cytosine and Uracil.
These are purine nitrogenous bases.
Guanine and Adenine
It is a process in which a substance is broken to make it useful in other processes.
Decomposition
The organisms that are capable of decomposing a substance for called _____.
Saprophytes
Who proposed that matter was composed of tiny indivisible particles?
Democritus (400 BC)
It is the driest ecosystem, very low amount of precipitation, may have very high or very low temperature.
Desert
* Presence of life form is none or low.
It is the conversion of semi-arid (arid -dry) areas to absolute desert.
Desertification
