Characteristics of Living Things
Key Terms
Spontaneous Generation
The Needs of Living Things
WiLd CaRd
100
Organisms that are composed of many cells are called...
What is multicellular organisms.
100
All living things are called:
What is organisms.
100
What is spontaneous generation?
What is the mistaken idea that living things can arise from nonliving sources.
100
What are the four basic needs of living things?
What are: - food - water - living space - stable internal conditions
100
Provide an example of how humans keep internal conditions stable.
What is sweating to cool the body down when it is hot.
200
List the characteristics that all living things share.
What is all living things: - have cellular organization - contain similar chemicals - use energy - respond to their surroundings - grow and develop - reproduce
200
This is the basic unit of structure and function in an organism.
What is a cell.
200
Where do living things come from?
What is living things arise from living things through reproduction.
200
An animal that makes its own food is called a(n) _______. Please give an example of such an organism.
What is autotroph. Example: plant
200
What is the most numerous organism on Earth?
What is bacteria.
300
This is the most abundant chemical in cells.
What is water.
300
Single-celled organisms are composed of only one cell and are called...
What is unicellular.
300
Who are two scientists that helped disprove spontaneous generation?
Who are Francesco Redi and Louis Pasteur.
300
What is a heterotroph? Give an example of an organism that is heterotrophic.
What is an organism that cannot make its own food, and one that obtains energy by feeding on others. Example: human
300
What are the chemicals of life?
What is: - water - carbohydrates - proteins and lipids - nucleic acids
400
A change in an organism's environment that causes the organism to react is called a...
What is a stimulus.
400
True or False: Bacteria is multicellular If false, what is the correct answer?
What is false, the correct answer is unicellular.
400
What is a controlled experiment?
What is when a scientist carries out two tests that are identical in every respect except for one factor (manipulated variable).
400
An organism reacts to a stimulus with a(n):
What is a response.
400
What are nucleic acids?
What are the genetic material --the chemical instructions that direct the cells activities.
500
Describe the difference between growth and development.
What is: growth: the process of becoming larger. development: the process of change that occurs during an organism's life to produce a more complex organism.
500
What is homeostasis?
What is the maintenance of stable internal conditions.
500
Describe Francesco Redi's controlled experiment.
What is Redi designed a controlled experiment to show that flies do not arise from decaying meat. 1.) meat placed in two identical jars - one jar is covered (manipulated variable) 2.) maggots appear on uncovered meat days later 3.) Redi reasons that the flies laid eggs on the uncovered meat - therefore life comes from life
500
What is one property of water that is vital to living things?
What is its ability to dissolve more chemicals than any other substance on Earth.
500
Describe Louis Pasteur's controlled experiment.
What is Pasteur disproved spontaneous generation. 1.) put clear broth into two flasks with covered necks and boiled ONE flask to kill bacteria 2.) after a few days, unboiled broth became cloudy (growing bacteria) and the boiled broth was clear 3.) Pasteur breaks the top off the boiled flask, in a few days the broth is cloudy and bacteria is present
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