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Initiation to Biology

Are atoms bonded together
The practice of naming and classifying species
Is the smallest unit of life
Multicelled eukaryotic consumers that ingest tissues or juices of other organisms
The process by which the first cell of a new individual becomes a multicelled adult
Makes its own food using energy and simple raw materials it obtains from nonbiological soruces
Fundamental units of matter - building blocks of all substances, least inclusive
Is a group of interbreeding individuals of the same type, or species, living in a given area
Process by which plants use the energy of sunlight to make sugars from water and carbon dioxide
A collection of one or more specific cell types that are organized in a way that suits them to a task
Consists of all populations living in a given area
Is a substance that an organism needs for growth and survival but cannot make for itself
The scope of variation among living organisms
Single-celled organisms with no nucleus
Is the scientific study of life
Refers to the transmission of DNA to offspring
Obtains energy and nutrients by feeding on other organisms
Eukaryotic consumers that secrete substances to break down food externally, then absorb nutrients, most are multicellular
A group of single celled organism that lack a nucleus but are more closely related to eukaryotes than to bacteria
Organ _____ are organs that interact closely in some task
Is an individual that consists of one or more cells
Process in which an organism keeps its internal conditions within tolerable ranges by sensing and responding to change
A group of species that share a unique set of traits
Carries hereditary information that guides development of other activities
Simplest eukaryotes, but as a group they vary dramatically, from single-celled consumers to giant, multicelled producers
Multicelled eukaryotes, and the vast majority of them are photosynthetic producers that live on land
A structural unit that is composed of two or more tissues and adapted to carry out a particular task
The process by which individuals produce offspring
A community interacting with its physical and chemical environment
Organisms whose cells characteristically have a nucleus
Increases in cell number, size, and volume
Encompasses all region of Earth's crust, waters, and atmosphere in which organisms live
The most diverse and well-known group of single-celled organisms that lack a nucleus
Unique type of organism
A group of organisms that share a unique set of traits