Shared Flashcard Set

Details

ICTS
Life, Earth and Space Science (Marci)
73
Science
Undergraduate 4
01/12/2012

Additional Science Flashcards

 


 

Cards

Term
The simplest form of life is called the ________.
Definition

 

cell

Term
The _________ is the building block of the _________ and the ____________ is the building block of the ________.
Definition

 

atom      molecule

 

molecule    cell   

Term
 Cell Theory states that all organisms are ________ ____ ____________.
Definition

 

 

comprised of cells

Term
 Cell Theory states that all cells arise from _______ _______.
Definition

 

 

preexisting cells

Term
 What does the Cell Theory state that the cell is?
Definition

 

The cell is the basic organizational unit of all organisms.

Term

 Specialized groups of cells are called _______.

 

An organism with only one cell is called______.

Definition

 

tissues

 

single celled organism

Term
 What role do tissues play in an organism?
Definition

 

Tissues have highly specialized characteristics and functions within an organism. 

Term

 The amount of cells in an organism can range from ________ to ___________.

 

Cell size can range from________ to __________ in demension.

Definition

 

single     billions

 

 

micron      centemeters

Term
 Name three ways organisms grow.
Definition

 


cell division

cell replication

enlargement of cells

Term
What is a dichotomous key?
Definition

 

 

A tool of science that allows scientists to organize and classify object by by their observable traits and properties.

Term
 Chloroplasts do what in cells?
Definition

 

 

Make plants perform photosynthesis.

Term

 What role does the nucleus of the cell play?

 

Definition

 

Houses the majority of the genetic material of the cell.

Controls all of the activity within the cell.

 

Term
 What role do ribosomes play in the cell?
Definition

 

Protein synthesis for the nucleus

Term

 Cell walls are found in _________.

 

Cell mebranes are found in_________.

 

What is the function of both?

Definition

 

Plants

 

Animals

 

To protect the inside of the cell.

 

Term
Another word for cell division is ________.
Definition

 

 

mitosis

Term
What is cytoplasm?
Definition

 

 

Cushions that protects the cells organelles.

Term

 What are organelles?

 

Examples are _________, __________, and ___________.

Definition

 

"Workers" inside cells that perform various functions.

 

Nucleus, Ribosomes, cell membrane 

Term
 In life sciences, the simplest classification keys are based off on the _______________.
Definition

 

gross anatomy of all organisms

Term
 Organisms are broken down into what 5 types?
Definition

 

Plants

Animals

Fungi

Protists

two kingdoms of Bacteria

Term
Which 5 states are a part of the Corn Belt in the United States?
Definition

Illinois

Indiana

Iowa

Missouri

Ohio

Term
Corn from Illinois is used to make ________ _______.
Definition
biodegradeable plastic
Term
The top 5 soybean export customers are:
Definition

In order from highest on down:

China

Mexico

Japan

Taiwan

Germany

Term

True or False?

 

The major rivers in Illinois feed into the Mississippi River, which has important use for exporting soybeans.  

Definition
True
Term
Not just for food, soybeans are used for:
Definition

candles

lotions

glue

crayons

soap

Term
Uses for corn from Illinois include:
Definition

Exports

Ethanol

Processing

Animal Food

Term
The top 3 countries that corn is exported to are:
Definition

In order from highest on down:

Japan

Mexico

South Korea

Term
The 4 parts of soil are:
Definition

Mineral

Water

Air

Organic Matter

Term
The three layers of soil are:
Definition

Topsoil

Subsoil

Parent Material

Term
Three types of soil are:
Definition

Sandy Soil

Silt (fine like flour)

Clay Soil

Term
Soil is made up of: 
Definition

Minerals

Organic Matter

Term

97.3% of Earth's water is located in the __________.

 

0.5% of water is __________.

Definition

ocean

 

groundwater

Term
_______ are central to the study of biology.
Definition
Life cycles
Term
The recurring pattern of events in the life cycle links ______, _________, _____________, and __________.
Definition

birth       growth

reproduction     death

Term
The concept of a cycle is also evident in:
Definition

carbon cycle

nitrogen cycle

Krebs cycle

hydrogeological cycle

periodic table

 

Term
The _______ ________ represents the complex interdependency of all plants and animals on the energy from the ______.
Definition

food chain

Sun

Term
The food chain represents the recycling of _________ from ___________ to _________ organisms.
Definition

nutrients

simple    complex

Term

True or False?

 

Some characteristics of the individual parent are passed along to the offspring, while others appear not to be.

Definition

 

True

Term
A _________ _______ is an observation that has been repeatedly confirmed.
Definition
scientific fact
Term
A __________ __________ is a testable statement about the natural world.
Definition
scientific hypothesis
Term
A __________ ________ is a well-substantiated explanation of some aspect of the world.
Definition
scientific theory
Term
Theories remain open to _______ or even ___________ should a better, more logical explanation be found.
Definition
revision     replacement
Term
Four things that do not need scientific validation are:
Definition

art

poetry

philosophy

religion

Term
What is evolution?
Definition
The theoretical process by which all species develop from earlier forms of life.
Term
What is technology?
Definition
The application of knowledge for man's benefit
Term
What is the ecosystem?
Definition
All living things and nonliving things in an environment and how they interact
Term
Living organisms exist in a relationship with:
Definition

soil

water

air

Term
Light drives the process of ____________ in green plants.
Definition
Photosynthesis
Term
_________ ________ provies heat for cold-blooded animals.
Definition
Solar energy
Term

True or False?

 

When an energy source is depleted, there is no other alternative source for organisms to rely on.

Definition

False

 

Organisms are usually able to find alternative sources of energy.

Term
____________ and ___________ relationships exist between organisms in an ecosystem.
Definition
Mutualistic   competetive
Term

True or False?

 

Higher up organisms can survive just fine without the other organisms beneath them in the energy pyramid.

Definition

False

 

Higher up organisms need the organisms beneath them on the energy pyramid.

Term
What two factors can change an ecosystem over time?
Definition

natural processes

activities of man

Term
What is natural succession?
Definition

When one community replaces another.

 

Term

What is the geosphere?

 

What is the hydrosphere?

 

What is the atmosphere?

Definition

All of the solid portions on Earth

 

All of the water portions on Earth

 

layer of gases held close to the Earth by gravitational forces 

 

Term
What are some processes that reshape our physical environment?
Definition

erosion

deposition

graded sorting of material by size and mass

Term
What is erosion?
Definition
The gradual wearing away of rock or soil by physical breakdown, chemical solution, and transportation of material
Term
Evidence of physical changes to the geosphere include:
Definition

landslides

earhquakes

volcanic eruptions

Term
Evidence of changes over time include:
Definition

fossil records

remnants of marks made plants and animals 

Term
How much of the earth is made up of water?
Definition
75%
Term
Most people of Illinois are near the following types of water:
Definition

rivers

streams

Term
The hydrosphere not only includes surface water but also ___________ _________ and _________ ________.
Definition

subsurface aquifers

water vapors

Term
Three examples of how man impacts the hydrosphere:
Definition

contaminate water

divert water flow

control water flow

Term
Describe the water cycle.
Definition

precipitation

accumulation

evaporation

condensation

 

 

Term

What part of the atmosphere holds the Earth's weather?

 

What is the layer above this called?

Definition

troposphere (lowest layer)

 

stratosphere

Term
If the earth were an apple how thick would the atmosphere be?
Definition
as thick as the apple's skin
Term
What is the basis of why we have seasons?
Definition
The angle of light striking the Earth
Term
The higher up a person travels in the atmosphere, the __________dense it gets.
Definition
less
Term
Useful tools of learning about weather include:
Definition

barometers

thermometers

hygrometers

Term
The _________ is the gravitational force of the Solar System.
Definition
Sun
Term

True or False?

 

The orbits of the planets are circular.

Definition

False.

 

They are elliptical. (Like an oval shape)

Term

True or False?

 

Galileo's theories of the universe were not well received.

Definition

True.

 

His theory about our planet not being the center of the universe was taken poorly by the church.

Term
If the Sun were the size of a grapefruit, then Pluto would be the size of a ________ _________.
Definition
poppy seed
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