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What is the definition of biology?
The study of life.
What is the root word of qualitative?
Quantity.
What is a hypothesis?
An educated guess, a testable explanation for observations
T or F A theory often becomes a law.
False because describing a natural phenomenon (scientific law) can be easier than explaining how it happens (scientific theory).
Define spontaneous generation.
Life from nonlife.
What can autotrophs do that other organisms cannot?
Make their own food.
Define homeostasis.
The maintenance of stable internal conditions.
A compound light microscope shines light through a specimen using two ____________ to magnify an image.
lenses
Quantitative observations involve _____________.
Numbers, counting, measuring
What is a variable?
A factor that changes in an experiment.
What is a carnivore? Give an example.
Organisms that eat only organisms other than plants.
Cat, dog, bear, tiger, ferret, seal, fox, otter, raccoon, badger, wolf
T or F. Your height in centimeters is a qualitative observation.
False. Qualitative observations are not easily counted, such as color or texture.
In an experiment, the group that does not experience manipulation is called the _____________ group.
Control
Name something science cannot measure.
Emotions, beauty, love, morals, ethics, etc...
What is an herbivore? Give an example.
An organism that eats only plants.
Deer, panda, elephant, horse, cow, rabbit, iguana, giraffe, koala, manatee, bison, caterpillar, kangaroo, beaver, hippo, camel, gorilla, antelope, grasshopper, snail, zebra
T or F When an organism reproduces asexually, the offspring are identical to the parent.
True - the offspring receives all DNA from one parent
The variable in an experiment that responds to the changes made is called the ________________ variable.
Dependent
Data you collect from experiments and observations is called
Evidence
Name the five senses.
Sight, touch, hearing, taste, smell
What are microorganisms?
Organisms that are too small to see with the naked eye.
What is inference?
What does multicellular mean?
Many-celled
What is a heterotroph?
An organism that depends on other organisms for its food.
A transmission electron microscope (TEM) transmits a beam of ___________ through a thinly sliced specimen.
Electrons
What is abiogenesis?
Long ago, very simple life forms spontaneously appeared through chemical reactions.
What is an omnivore? Give an example.
Racoon, bear, pig, chimp, humans, crows, chickens, skunk, fox, turtles, ants, squirrel, possums, rats, duck
What are the smallest units of an organism considered alive called?
Cells
T or F The independent variable in an experiment is the variable that changes.
True.
What does unicellular mean?
Single-celled
In an experiment, the group that is manipulated is called the ___________________ group.
Experimental
The process by which two parents produce genetically different offspring is called __________ __________.
Sexual reproduction.
A scanning electron microscope (SEM) passes a beam of electrons over the ____________ of a speciman.
Surface.
What is the sum total of all processes that convert energy and matter to sustain an organism's life functions called?
Metabolism
What is photosynthesis?
The process by which plants use sunlight and simple chemicals to produce their own food.
Does science prove anything? Explain your answer.
No because new data can become available that can change what was previously believed to be true.
What is the sum total of all processes that use energy and simple chemical building blocks to produce large chemicals and structures necessary for life?
Anabolism
What's the difference between endotherms and ectotherms?
Endotherms create own heat, ectotherms cannot.
What is the sum total of all process that break down chemicals to produce energy and simple chemical building blocks called?
Catabolism
An abrupt and marked change in the DNA of an organism compared to that if its parents is called _____________.
Mutation.
The process by which physical and biological characteristics are transmitted from the parent (or parents) to the offspring is called _____________.
Inheritance