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Bio Chapter 1 terms
Terms in this set (57)
Fundamental building blocks of all matter, living or not. Looks like a red ball. Atoms join as molecules. There are no atoms unique to living things, but there are unique molecules.
Atoms join other atoms in molecules. An association of two or more atoms. More complex than a water molecule.
In today's world, only living things make the "molecules of life", which are lipids, proteins, DNA, RNA, and complex carbohydrates.
Smallest unit of life. Some cells live and reproduce as part of a multicelled organism and others can on their own. They use energy, raw materials, and information in their DNA.
All populations of all species in a given area.
A community interacting with its environment through the transfer of energy and materials.
A characteristic of a system that does not appear in any of the system's component parts.
The idea that structures with emergent properties can be assembled from the same basic building blocks is a recurring theme in our world, and also in biology.
In multicelled organisms, a grouping of tissues engaged in a collective task. (interacting tissues)
Flowers are the reproductive organs of many plants.
Individual that consists of one or more cells.
ex: poppy plant (multicelled)
In multicelled organisms, set of organs engaged in a collective task that keeps the body functioning properly.
ex: Above ground parts of a plant (shoot system)
ex2: circulatory system
Group of interbreeding individuals of the same species that live in a given area. ( can be single or multi-celled)
In multicelled organisms, specialized cells organized in a pattern that allows them to perform a collective function.
All regions of Earth where organisms live.
3 Key Features of Living Things
1. Requirement for energy and nutrients
3. Use of DNA as hereditary material
Organism that gets energy and nutrients by feeding on tissues, wastes, or remains of other organisms.
(cannot make their own food)
Multistep process by which the first cell of a new multicelled organism gives rise to an adult.
Deoxyribonucleic acid; carries hereditary information that guides development and other activities.
In multicelled species, an increase in the number, size, and volume of the cells.
Process in which an organism keeps itself internal conditions within tolerable ranges by sensing and responding to change.
Transmission of DNA to offspring.
-one step process
Substance that an organism needs for growth and survival but cannot make for itself.
Process by which producers use light energy to make sugars from carbon dioxide and water.
Organism that makes its own food using energy and nonbiological raw materials from the environment.
Process by which parents produce offspring.
Multicelled consumer that develops through a series of stages and moves about during part or all of its life.
Group of single-celled organisms that lack a nucleus but are more closely related to eukaryotes than to bacteria.
The most diverse and well-known group of single-celled organisms that lack a nucleus. (most numerous on Earth)
Scope of variation among living organisms.
Organism whose cells (DNA) characteristically have a nucleus. (Closely related to archaea)
-typically larger and more complex than bacteria or archaea
Single-celled or multi-celled eukaryotic consumer that breaks down material outside itself, then absorbs nutrients released from the breakdown.
Sac that encloses a cell's DNA; has two membranes.
A multicelled, typically photosynthetic producer.
Single-celled organism with NO nucleus.
Member of a diverse group of simple eukaryotes.
-very from single-celled consumers to giant multicelled producers
A group of species that share a unique set of traits.
Unique type of organism.
Second part of a species name.
Group of organisms that share a unique set of traits.
The science of naming and classifying species.
An observable characteristic of an organism or species.
Group of individuals identical to an experimental group except for the independent variable under investigation
Judging information before accepting it.
Using a general idea to make a conclusion about a specific case.
In an experiment, a variable that is presumably affected by an independent variable being tested.
A test designed to support or falsify a prediction.
In an experiment, a group of individuals who have a certain characteristic or receive a certain treatment.
Testable explanation of a natural phenomenon.
Variable that is controlled by the experimenter in order to explore its relationship to a dependent variable.
Drawing a conclusion based on observation.
Analogous system used for testing hypotheses.
Statement, based on a hypothesis, about a condition that should exist if the hypothesis is correct.
Systematic study of the observable world.
Making, testing, and evaluating hypotheses
Difference between results derived from testing an entire group of events or individuals, and results derived from testing a subset of the group.
Refers to a result that is statistically unlikely to have occurred by chance.
Law of nature
Generalization that describes a consistent natural phenomenon for which there is incomplete scientific explanation.
Hypothesis that has not been disproven after many years of rigorous testing.
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