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Prokaryotes
Single-celled Organisms (bacteria, Some Protists) The prokaryotes are a group of organisms that lack a cell nucleus (= karyon), or any other membrane-bound organelles. TERM 2
Eukaryotes
DEFINITION 2 A eukaryote is an organism whose cells contain complex structures enclosed within membranes. Multi-cellular organisms (some Protist, Fungi, Plants, and Animals) with double membranes TERM 3
Asexual Reproduction
DEFINITION 3 Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only; it is reproduction which does not involve meiosis, ploidy reduction, or fertilization. Produce exact replica of themselves. TERM 4
Sexual Reproduction
DEFINITION 4 Sexual reproduction is the creation of a new organism by combining the genetic material of two organisms. Exchange of genetic material between organisms. TERM 5
Genome
DEFINITION 5 In modern molecular biology and genetics, the genome is the entirety of an organism's hereditary information. All deoxyribonucleic acid (DNA) molecules in a cell.
Nucleotides
Nucleotides are molecules that, when joined together, make up the structural units of RNA and DNA. Guanine, Cytosine, Adenine, Thymine. TERM 7
Genes
DEFINITION 7 A gene is a molecular unit of heredity of a living organism. Section of DNA strand that codes for something. TERM 8
Natural Selection
DEFINITION 8 Natural selection is the nonrandom process by which biological traits become either more or less common in a population as a function of differential reproduction of their bearers. Traits that help an organism survive and reproduce will be favored. TERM 9
Adaptations
DEFINITION 9 An adaptation in biology is a trait with a current functional role in the life history of an organism that is maintained and evolved by means of natural selection. Structural, physiological, or behavioral traits that improve chances of living in a particular environment. TERM 10
Atoms
DEFINITION 10 The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.
Organisms
In biology, an organism is any contiguous living system. TERM 17
Populations
DEFINITION 17 A population is all the organisms that both belong to the same group or species and live in the same geographical area. TERM 18
Communities
DEFINITION 18 The term community has two distinct meanings: 1) A group of interacting people, living in some proximity. TERM 19
Ecosystems
DEFINITION 19 An ecosystem is a biological environment consisting of all the organisms living in a particular area, as well as all the nonliving, physical components of the environment with which the organisms interact, such as air, soil, water and sunlight. TERM 20
Biosphere
DEFINITION 20 The biosphere is the global sum of all ecosystems.
Taxonomic
Taxonomy is the science of identifying and naming species, and arranging them into a classification. TERM 22
Domains
DEFINITION 22 Archaea, Bacteria, eukarya. TERM 23
Kingdom
DEFINITION 23 Protista, Plantae, Fungi, Animalia TERM 24
Phylum
DEFINITION 24 In biology, a phylum is a taxonomic rank below kingdom and above class. TERM 25
Subphylum
DEFINITION 25 In scientific classification of biota, a subphylum is a taxonomic rank in zoological nomenclature.
