Studied by 3 people
Natural Selection
________: favorable traits that are heritable become MORE COMMON.
Fitness
________: how to measure capability of survival and reproduction.
Evolution
________: A genetic change in a population over time; sometimes leads to the production of new species.
Nature of Science
The ________: 1. seeks to explain the natural world 2. relies on evidence from the natural world to support evidence.
Compound
________ Leaves: Have a leaf with leaflets.
ORGANIC MOLECULES
________ were synthesized from atmospheric gases (violent electrical storms; lightning)
Organ
________- agroup of tissues that work together to perform a function.
Cellular respiration
________- way to get energy (mitochondria)
VIOLENT VOLCANISM
________ led to formation of an ATMOSPHERE.
Gradualism
________: incremental changes that accumulate over time.
Digestion
________- the breakdown of complex food materials into simpler forms.
Respiration
________- releases chemical energy from nutrients.
New genes
Migration: ________ enter or leave a population.
Palmate
________: Leaves with veins that come off of the stem.
Cline
________: full division of organisms no longer able to reproduce with one another (speciation division due to distance)
Sympatric Speciation
________: two populations living in the SAME ENVIRONMENT.
early organism
Photosynthesis by ________ contributed O2 to Atmosphere.
Hypothesis
________: formed as a possible explanation of the phenomenon.
Variables
________: the conditions in an experiment that are changed.
statement
Law: a(n) ________ that describes natural phenomena; a principle.
particular habitat
The organisms of a(n) ________ together with the physical environment in which they live.
Selection
________: Individuals best suited for their environment will survive and reproduce more.
Antibiotics
________: drugs that abolish the growth of micro- organisms.
Inheritance
________: traits can be passed down from parent to offspring.
Molecules
________- the smallest chemical unit of a compound that is capable of a stable, independent existence.
Gene Flow
________: change in allelic frequency within a population due to MIGRATION.
Equilibrium
Punctuated ________: rapid spurts of genetic change due to rapid change in environment.
Synthesis
________- organisms combine simple substances to form more complex substances, break down complex substances, release energy, by series of chemical reactions.
Experiment
________: an organized, purposeful test in which certain conditions are changed.
Allopatric Speciation
________: Two populations of same species are living in DIFFERENT ENVIRONMENTS.
Sexual reproduction
________: Existing DNA is rearranged.
similar traits
Convergent Evolution- the process whereby organisms not closely related independently evolve ________.
Atoms
________- the smallest particle of an element that has the chemical properties of the element; all matter composed of ________.
Nutrients
________- substances organisms need to live.
Phenomenon
________: direct observation of something (a fact observed)
Biology
________: the study of life and living things.
Pinnate
________: Leaves where the veins come off of main vein.
Theory
________: a logical explanation of a natural event.
Observations
________: made of a particular problem, or natural phenomenon.
Convection current
________: circulation caused when heated, less dense material rises and is displaced by cooler, denser material.
Speciation
________: a possible result of evolution.
Core
________ melted- tremendous pressure; energy from radioactive decay.
Scientific Method
________: a logical method that utilizes a series of steps to investigate a problem or phenomenon.
Ozone layer
________: formed in upper atmosphere, blocking out most UV radiation (deadly to early life)
UV radiation
________ causes damage to DNA.
Community
________- the assemblage of different population living together in a defined area.
Micro
________- organisms: bacteria fungi, or protozoans.
Genetic Drift
________: change in allelic frequency within a population due to MUTATION.
Organisms
________ take in materials from their external environment and change them into forms useful to life: nutrition.
Tissues
________- a group of similar cells organized into a singular functioning unit.
Cline
full division of organisms no longer able to reproduce with one another (speciation division due to distance)
Corn
provides 8 essential peptides
The Nature of Science
seeks to explain the natural world 2. relies on evidence from the natural world to support evidence
Theory
well-supported explanation based upon OBSERVATION and EXPERIMENTATION
Elements of Theory
explain known phenomena 2. predict new events 3
Evolution
A genetic change in a population over time; sometimes leads to the production of new species
Population
A group of organisms of the same species
Species
A group of organisms that are capable of INTERBREEDING
Fitness
how to measure capability of survival and reproduction
Gradualism
incremental changes that accumulate over time
Punctuated equilibrium
rapid spurts of genetic change due to rapid environmental changes
Genetic Drift
change in allelic frequency within a population due to MUTATION
Gene Flow
change in allelic frequency within a population due to MIGRATION
Pinnate
Leaves where the veins come off of main vein
Palmate
Leaves with veins that come off of the stem
Simple Leaves
have a bud between stem and branch
Compound Leaves
Have a leaf with leaflets
Allopatric Speciation
Two populations of same species are living in DIFFERENT ENVIRONMENTS
Sympatric Speciation
two populations living in the SAME ENVIRONMENT
Natural Selection
favorable traits that are heritable become MORE COMMON
Variation
not all individuals are identical in a population
mutations
random changes in DNA
sexual reproduction
Existing DNA is rearranged
migration
New genes enter or leave a population
Inheritance
traits can be passed down from parent to offspring
Selection
Individuals best suited for their environment will survive and reproduce more
Punctuated Equilibrium
rapid spurts of genetic change due to rapid change in environment
Speciation
a possible result of evolution
Antibiotics
drugs that abolish the growth of micro-organisms
Micro-organisms
bacteria fungi, or protozoans
phenomenon
direct observation of something (a fact observed)
data
facts and observations gathered and recorded about a problem
experiment
an organized, purposeful test in which certain conditions are changed
variables
the conditions in an experiment that are changed
Controlled experiment
only ONE VARIABLE is allowed to change (experimental observation); other factors are held constant
Experimental variable
what is changed in an experiment
Hypothesis
a possible explanation of phenomena
Theory
a logical explanation of a natural event
Law
a statement that describes natural phenomena; a principle
Scientific Method
a logical method that utilizes a series of steps to investigate a problem or phenomenon
observations
made of a particular problem, or natural phenomenon
Data
gathered and may lead to a solution
Hypothesis
formed as a possible explanation of the phenomenon
Controlled Experiment
developed and performed to test a hypothesis
Conclusions
made concerning the problem, and the accuracy of the hypothesis, based on result of experiment
Theory
may be formulated over time as a logical explanation of the observed phenomena
Scientific Method Order
Observations, data, hypothesis, controlled experiment, conclusions, theories
Biology
the study of life and living things
organisms take in materials from their external environment and change them into forms useful to life
nutrition
Nutrients
substances organisms need to live
Note 
Flashcard (70)