Life Science

Front 1

Homeostasis

Back 1

the ability of an organism to maintain a stable internal environment even when the external environment changes

Front 2

Unity

Back 2

all known living species have particular characteristics in common
1) all living cells come from preexisting living cells
2) all cells make use of enzymes
3) DNA
4) Metabolism
5) adaption
6) species

Front 3

enzymes

Back 3

proteins that speed up the rate of chemical reactions in living things

Front 4

species

Back 4

basic unit of classification for living things

Front 5

Metabolism

Back 5

biochemical activities necessary for life carried on by all cells, tissues, organs and systems.

Front 6

8 Life Functions

Back 6

1) Nutrition
2) Synthesis
3) Circulation
4) Regulation
5) Respiration
6) Excretion
7) Growth
8) Reproduction

Front 7

Nutrition

Back 7

LIFE FUNCTION
taking materials from the external environment and changing it into forms it can use.
-ingestion (taking in food)
-digestion (chemical changes converting nutrients into usable form)
-assimilation (changing nutrients into protoplasm)

Front 8

Synthesis

Back 8

LIFE FUNCTION
combining simpler substances to make more complex substances
-amino acids (protein building blocks)

Front 9

Circulation

Back 9

LIFE FUNCTION
substances moving around inside of cells

Front 10

Regulation

Back 10

LIFE FUNCTION
all activities that help organism maintain homeostasis.
-endocrine system
-nervous system

Front 11

Respiration

Back 11

LIFE FUNCTION
-breathing
-cellular respiration (release energy from glucose)

Front 12

Excretion

Back 12

LIFE FUNCTION
get rid of waste products

Front 13

Growth

Back 13

LIFE FUNCTION
increase of cell size and/or the increase of cell numbers in an organism. Cell numbers increase when cells divide (replicate) during a sequence of events called mitosis.

Front 14

Reproduction

Back 14

LIFE FUNCTION
-sexual
-asexual

Front 15

terrestrial

Back 15

land dwelling

Front 16

stems perform three functions

Back 16

1) move water upward from roots to the leaves and move dissolved food materials down from the leaves to the roots
2) produce and support leaves and flowers
3) provide a way to store food

Front 17

chlorophyll

Back 17

green leaves have chlorophyll.
helps leaves use the sun's energy to make carbohydtrates from carbon dioxide and water.

Front 18

Taxonomic Classification

Back 18

1) Kingdom (plant, animal)
2) Phylum (mollusks, algae)
3) Class (mammals, birds, reptiles)
4) Order (primates, whales)
5) Family (cats, orchids, salmon)
6) Genus
7) Species (bald eagle, spotted giraffe)

Front 19

10 key systems of human organism

Back 19

1) Skeletal system
2) Muscular system
3) Nervous system
4) Endocrine system
5) Respiratory system
6) Circulatory system
7) Lymphatic system- assists with bringing oxygen to cells and removing waste products from them
8) Digestive system
9) Excretory system
10) Reproductive system

Front 20

Disease

Back 20

keeps the body or its organs from functioning as they are designed
1) infectious
2) non infectious

Front 21

Three basic laws of heredity

Back 21

1) Law of segregation- individual hereditary traits, or units, separate in the gametes.

2) Law of indepedent assortment- each trait is inherited independendtly of other traits

3) Law od dominance- when contrasting traits are both present, one trait is dominant and one is recessive

Front 22

The Paleozoic Era

Back 22

600 million - 230 million years ago.
formation of mountains general terrain.

Front 23

The Precambrian Era

Back 23

3.5 - 4.5 billion years ago
small microbes formed.

Front 24

The Mesozoic Era

Back 24

230 million-65 million years ago. Jurassic

Front 25

Cenozoic Era

Back 25

500,000 years ago
rise and fall global ice age

Front 26

Meteorology: temperature

Back 26

1) affected by the angle of the sun's rays
2) what season it is currently (and therefore the position of the earth relative o the sun)
3) the altitude, the nearness of 4) any large bodies of water

Front 27

Meteorology: air pressure

Back 27

depends mostly on temperature and humidity; warm air is lighter than cold air, and moist air is heavier than dry air. Changes in atmospheric pressure are measures on a barometer.

Front 28

Meteorology: wind

Back 28

Wind is air moving from one place to another; it is caused by differences in air pressure. Winds move from areas of higher pressure to areas of lower pressure.

Front 29

Meteorology: humidity

Back 29

amount of moisture in the air.
-relative humidity is a percentage of how much water vapor the local air could hold at a given temperature.
-when the air is warm and dry, moisture on the earth's surface tend to evaporate (turn into vapor)
-when the air is saturates or completely filled with moisture, a decrease in temperature will cause moisture in the air to condos and precipitate as rain, sleet, snow or hail.

Front 30

Planet: Mercury

Back 30

Average distance from sun: 36
Rank by size: 8
Time for revolution: 88 days
Number of moons: 0

Front 31

Planet: Venus

Back 31

Average distance from sun: 67.1
Rank by size: 6
Time for revolution: 225 days
Number of moons: 0

Front 32

Planet: Earth

Back 32

Average distance from sun: 93
Rank by size: 5
Time for revolution: 365.25
Number of moons: 1

Front 33

Planet: Mars

Back 33

Average distance from sun: 141.7
Rank by size: 7
Time for revolution: 687 days
Number of moons: 2

Front 34

Planet: Jupiter

Back 34

Average distance from sun: 483.4
Rank by size: 1
Time for revolution: 12 years
Number of moons: 63 (12 major, 51 minor)

Front 35

Planet: Saturn

Back 35

Average distance from sun: 886.1
Rank by size: 2
Time for revolution: 29 years
Number of moons: 33 (9 major, 24 minor)

Front 36

Planet: Uranus

Back 36

Average distance from sun: 1,783
Rank by size: 3
Time for revolution: 84 years
Number of moons: 27 (5 major, 22 minor)

Front 37

Planet: Neptune

Back 37

Average distance from sun: 2,793
Rank by size: 4
Time for revolution: 164 years
Number of moons: 13 (2 major, 11 minor)

Front 38

Elements

Back 38

basic material in the universe.
120 elements

Front 39

Atom

Back 39

smallest particle of an element
- nucleus
- protons
- neutrons
- electron (outer shell)

Front 40

Ohms Law

Back 40

relationship between voltage, current and resistance.
Strength of current = voltage + inversely proportional to resistance.

Front 41

Power

Back 41

power is defined as the rate at which work is done.
Watts (W) for power
Joules (J) energy work

Front 42

Watt

Back 42

A Watt is the power that gives rise to production of energy a the rate of 1 joke per second
(W= J/s)

Front 43

Joule

Back 43

A Joule is the work done when the point of application of force of 1 newton is displaces a distance of 1 meter in the direction of the force.
(J-N x m)