Characteristics of Life Flashcards
What is the Scientific Method? (OHEDAC)
Observation, Hypothesis, Experiment, Data, Analysis, Conclusion
What is a virus?
A tiny particle that needs a host cell to survive and multiply.
Mutate (define)
Spread
Are viruses living?
No, they need a cell to survive
Abiotic (define)
Nonliving
Biotic (define)
Living, meets the 8 characteristics of life
What are the 8 characteristics of life? (CRDNAGEHEE)
made of CELLS, REPRODUCES, DNA or RNA, GROWS and develops, uses ENERGY, maintains HOMEOSTASIS, responds to the ENVIRONMENT, EVOLVES
Characteristics (define)
description of something or what characterizes it
Classification (define)
Levels of organisms
Evolve (define)
to change over a period of time
Asexual reproduction
reproducing by itself (cloning)
Sexual reproduction
organism needs a partner to reproduce
Homeostasis
the steady temp. inside an organism’s body
Metabolism
a process that occurs within an organism to keep it alive
Metric system
a measuring system based on units of length
Compound light microscope
a microscope that uses light to magnify objects
Unicellular; multicellular
has one cell; has multiple cells
external
happens on the outside
Observation
findings after experimenting with a lab and gathering info
Inference
a logical explanation of something based on an experience
Hypothesis
a prediction to the results of a scientific lab or experiment
independent variable
the variable that is manipulated
dependent variable
the variable that changes based on the independent variable
controlled variable
the one variable that doesn’t change
theory
a prediction or hypothesis that is so believed and supported in it becomes a theory
cell
the smallest functional unit of life that makes up organisms
bacteria
unicellular prokaryotes that can be found everywhere
archaea
prokaryotic, single-celled, organisms that live in extreme environments
Quantitative data
numerical data; ex: temperature
Qualitative data
descriptive data; ex: what it looks like, yellow
