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26 Cards in this Set

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Define Population

Localized groups of organisms that belong to the same species.

Define Community

Populations of species inhabiting an ecosystem.

Define Ecosystem

An energy processing system of community interactions.

Define Biomes

major ecosystem types - classified by vegetation and combination of plants and animals

Define Biosphere

Sum of earth's ecosystems

Define Emergent Properties

A reflection of the interactions between the components contributing to the make up of each organizational level.

Define Holism

Studying the system as a whole through the study of interactions among the systems parts.

Define Reductionism

Complex systems can be understood by studying the individual components.

Who is Robert Hooke?

In 1665 he developed the term 'cell'.

Who is Anton van Leeuwenhoek?

In 1674 he reported the discovery of protozoa and bacteria.

Who is credited with the development of the cell theory?

Schleiden and Schwann

What is the cell theory?

1. Cells are the universal building blocks of all forms of life.


2. All living cells are formed by the division of existing cells.

What are the common features of all cells?

They are all enclosed by membranes and they use DNA as their genetic information.


Define nucleotide

Nitrogenous base, five carbon sugar and phosphore group that makes up DNA (A,C,T,G)

Define gene expression

The sequence of nucleotides.

Define genome

'Library' of genetic instructions that an organism inherits.


Define gene

Heritable information

Define genomics

the study of genomes

What is evolution?

The one unifying biological theme

Define taxonomy

The classification and naming of organisms

Define systematics

The study of biodiversity in an evolutionary context.

What is the current taxonomy scheme?

Bacterial, archaean, protistan, plantae, fungi, animalia

What are the three domains?

Baceria, archea, eukarya

What are the other taxonomic groups?

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

The distance of an electron from the nucleus in determined by what?

Energy Levels; electron configuration is responsible for the chemical behavior of an atom

What are the major elements?

C, H, O, N, P, S, K, Ca, Mg, Na, Cl