Chapter 1 Flashcards
Definition of biology:
This is the scientific study of life
What are the six characteristics of life?
-order
-adaptation
-stimuli
-homeostasis
-reproduction
-energy consumption
Do living organisms show order?
True or False?
True
In a population, individuals with favorable traits, will survive and reproduce at higher rates. What is this called?
Adaptations.
Living organisms, do not respond to changes in their environment true or false?
False.
Define homeostasis:
Balancing a specific range of internal conditions in spite of external environment.
This word describes a dynamic state of equilibrium in which internal conditions vary but within narrow limits what is the word?
Homeostasis
This occurs in a living organism when an accumulation of an end product inhibits the process. What is this called?
Negative feedback
In order for an organism to pass their genes along to a healthy, fertile offspring, what must the organism do hint, this is one of the characteristics of life
Reproduce
Do all living organisms, consume energy, true or false
True
Define biosphere
Region of earth that supports life
Define ecosystem
Specific area within the biosphere with common set of physical characteristics
Define community
Populations, living and interacting in a ecosystem
Define population
members of a species that live in the same community
Define species
Similar interbreeding organisms within a population
Define organism
An individual living thing containing complex organ systems
Define organs
A tissue with a specific vital function
Define tissue
Group of cells with a common structure and function
Define cell
Smallest unit of an organism that still demonstrates all basic characteristics of life
Give a basic definition of a molecule
It is a Union of atoms
What is the smallest unit of an element?
Atoms
The scientific method involves what ?hint five actions
-observation
-hypothesis
-experimentation
-collecting data
-conclusion
Define hypothesis
An educated, guess based on information, you already know
During this phase of the scientific method is when you test a hypothesis. What is this called?
Experimentation
The _______ variable is the cause.
Independent variable
The _____ variable is the effect.
Dependent variable
Define dependent variable
A variable that is changed or effected, measured
A value that is not affected by other variables in an experiment what is this variable called?
Independent variable
All experiments involve the collection of ______ and _____ data.
Quantitive and qualitative data
Basic definition of quantitive data
Numerical measurement
Basic definition of qualitative data
non-numerical descriptive observations
How do you counter the probability of a experimental result, occurring simply do the random chance?
By having a larger sample size
Bias is the capacity of influencing a result of an experiment. How do you counter bias in an experiment?
-blind experiment
-double-blind experiment
Define scientific law
Description of an observed phenomenon they do not explain the phenomenon just simply state it
What field of biology studies cells?
Cell biology
Field of biology that studies, inheritance and chromosomes
Genetics
Field of biology that classifies different species to indicate how closely related they are
Taxonomy
Study of how organisms on present day earth came to be
Evolution
Study of plants
Botany
Study of material substances that make up living things
Bio chemistry
