What is Life

Is the following sentence true of false,most cells can be seen only with a microscope,a tool that magnifies small objects?

True

Is the following sentence true or false,the cells of organisms use energy for growth and repair?

True

What is stimulus?

a change an organisms environment that causes a reaction.

What is an organism?

a living thing

Organisms that make their own food are called

autrophs

What are the basic building blocks of all organisms are?

cells

What is development?

development is the process of change that occurs during an organisms life to produce a more complex life.

Is the following sentence true of false,Louis Pasteur used a controlled experiment to show bacteria arise from spontaneous generation.

false

Is the following sentence true of false,flies arise from rotting meat.

false

Is the following sentence true or false,living things can live without water for long periods of time

false

Is the following sentence true or false,an organism made of cells a unicellular organism?

false:multicellular

The four things living things need ti survive are

food,water,living space,and stable internal conditions.

All organisms can what or produce offspring that are similar to the parents?

reproduce

Is the following sentence true or false,living things use food as their energy source to carry out their life functions.

true

Is the following sentence true or false,organisms compete with eachother for space to live.

true

What is the most abundant chemical in cells

water

What property of water makes it vital to living things?

water can dissolve more chemicals than any other substance on Earth.

The idea that living things can come from nonliving sources is called?

spontaneous generation

What is the change in an organisms surroundings that causes the organism to react?

stimulas

What is response?

the reaction to the change in the environment.

What did Francesco Redi show in his experiment?

Redi showed that flies do not spontaneously arise from decaying meat.

Lipids and what are the building materials of cells?

proteins

What are the six characteristics that all living things share?

All living things have a cellular organization,contain similar chemicals,use energy,respond to their surroundings,grow and develop,reproduce.

Why must living things have homeostasis or stable internal conditions?

Conditions in the surroundings of the organisms can change significantly.

Organisms that cannot make their own food are called

heterotrophs

The factor that a scientist changes in a controlled experiment is the

munipulated variable