Organism's modification in structure, function, or behavior suitable to the environment.
Multicellular, heterotrophic organism belonging to the animal kingdom.
One of the three domains of life; contains prokaryotic cells that often live in extreme habitats and have unique genetic, biochemical, and physiological characteristics; its members are sometimes referred to as archaea.
Smallest particle of an element that displays the properties of the element.
One of the three domains of life; contains prokaryotic cells that differ from archaea because they have their own unique genetic, biochemical, and physiological characteristics.
Two-part scientific name of an organism. The first part designates the genus, the second part the specific epithet.
Scientific study of life.
Zone of air, land, and water at the surface of the Earth, in which living organisms are found.
Smallest unit that displays the properties of life; always contains cytoplasm surrounded by a plasma membrane.
One of the categories, or taxa, used by taxonomists to group species; class is the taxon above the order level.
Assemblage of populations interacting with one another within the same environment.
Statement made following an experiment as to whether the results support the hypothesis.
Sample that goes through all the steps of an experiment but lacks the factor or is not exposed to the factor being tested; a standard against which results of an experiment are checked.
Facts or pieces of information collected through observation and/or experimentation.
The primary taxonomic group above the kingdom level; all living organisms may be placed in one of three domains.
Biological community together with the associated abiotic environment; characterized by energy flow and chemical cycling.
Capacity to do work and bring about change; occurs in a variety of forms.
One of the three domains of life, consisting of organisms with eukaryotic cells and further classified into the kingdoms Protista, Fungi, Plantae, and Animalia.
Type of cell that has a membrane-bounded nucleus and membranous organelles.
Descent of organisms from common ancestors with the development of genetic and phenotypic changes over time that make them more suited to the environment.
A value that is expected to change as a result of an experiment; represents the factor that is being tested by the experiment.
One of the categories, or taxa, used by taxonomists to group species; the taxon above the genus level.
Saprotrophic decomposer; the body is made up of filaments called hyphae that form a mass called a mycelium.
Unit of heredity existing as alleles on the chromosomes; in diploid organisms, typically two alleles are inherited—one from each parent.
One of the categories, or taxa, used by taxonomists to group species; contains those species that are most closely related through evolution.
Maintenance of normal internal conditions in a cell or an organism by means of self-regulating mechanisms.
Supposition that is formulated after making an observation; it can be tested by obtaining more data, often by experimentation.
One of the categories used to classify organisms; the category above phylum.
All of the chemical reactions that occur in a cell.
Union of two or more atoms of the same element; also, the smallest part of a compound that retains the properties of the compound.
Mechanism resulting in adaptation to the environment.
Step in the scientific method by which data are collected before a conclusion is drawn.
One of the categories, or taxa, used by taxonomists to group species; the taxon above the family level.
Combination of two or more different tissues performing a common function.
Individual living thing.
Group of related organs working together.
Chemical signal released by an organism that affects the metabolism or influences the behavior of another individual of the same species.
Process occurring usually within chloroplasts whereby chlorophyll-containing organelles trap solar energy to reduce carbon dioxide to carbohydrate.
One of the categories, or taxa, used by taxonomists to group species; the taxon above the class level.
Multicellular, usually photosynthetic, organism belonging to the plant kingdom.
Organisms of the same species occupying a certain area.
Organism that lacks the membrane-bounded nucleus and membranous organelles typical of eukaryotes.
Member of the kingdom Protista.
To produce a new individual of the same kind.
Process by which scientists formulate a hypothesis, gather data by observation and experimentation, and come to a conclusion.
Concept supported by a broad range of observations, experiments, and conclusions.
Group of similarly constructed organisms capable of interbreeding and producing fertile offspring; organisms that share a common gene pool; the taxon at the lowest level of classification.
In the binominal system of taxonomy, the second part of an organism's name; it may be descriptive.
Branch of biology concerned with identifying, describing, and naming organisms.
Means in which to determine the accuracy of a prediction, as by conducting experiments.
Group of similar cells that perform a common function.
The _________ is the basic structural unit of all living things.
The scientific method always begins with:
What are the Seven Characteristics of All Life?
2. Response to Stimuli
3. Regulation of Internal
4. Acquisition of Materials and . Energy
5. Reproduction and Development
6. Genetic Inheritance
7. Evolutionary Adaptations
What are the four kingdoms
in the Domain Eukarya?
1. Protista: The protists - unicellular and multicellular organisms either photosynthetic or not
2. Fungi: The fungi - multicellular, heterotrophic mostly decomposers
3. Plantae: The plants - multicellular photosynthetic organisms
4. Animalia: The animals - multicellular, heterotrophic and mostly mobile
What are the four steps in The Scientific Method?
1. Observation: what scientists can sense in the world around them
2. Hypothesis: an explanation for a natural event that can be tested
3. Testing: using either observation or experimentation to disprove a hypothesis
4. Conclusion: the results are analyzed and the hypothesis is supported or rejected
What are the levels of classification (specific to general) used by taxonomists?
Levels of classification (specific to general)
Species, Genus, Family, Order, Class, Phylum, Kingdom, and Domain