Fundamental building block of all matter
Atom
Two or more atoms bonded together.
Molecule
The dynamics of an ecosystem depends on two main processes, what are they and how are they different.
Energy (one way flow) and nutrients (cycling).
Who are producers? Who are consumers?
Producers make their own food using energy and simple raw materials it obtains from nonbiological sources.
Consumers obtains energy and nutrients by feeding on other organisms.
What characteristics are shared by all life?
Organization into cells, adaptation to environmental change, the requirement for nutrients, and DNA housed in a nucleus.
The scientific study of life
Biology
All regions of Earth where organisms live.
Biosphere
Smallest unit of life.
Cell
Individual that consists of one or more cells.
Organism
Organism that gets energy and nutrients by feeding on the tissues wastes or remains of other organisms.
Consumer
All populations of all species in a given area.
Community
A community interacting with its environment
Ecosystem
Group of interbreeding individuals of the same species that live in a given area.
Population
Multistep process by which the first cell of a new multicelled organism gives rise to an adult.
Development
In multicelled species, an increase in the number, size and volume of cells.
Growth
Deoxyribonucleic acid; carries hereditary information that guides development and other activities.
DNA
In multicelled species, an increase in the number, size and volume of cells.
Growth
Transmission of DNA to offspring.
Inheritance
Process by which parents produce offspring.
Reproduction
Multicelled consumer that develops through a series of stages and moves about during part or all of its life.
Animal
Process in which an organism keeps its internal conditions within tolerable ranges by sensing and responding to change.
Homeostasis
Substance that an organism needs for growth and survival but cannot make for itself.
Nutrient
Process by which a producer uses light energy to make sugars from carbon dioxide and water.
Photosynthesis
Organism that makes its own food using energy and nonbiological rawmaterials from the environment.
Producer
Group of single-celled ogranisms that lack a nucleus but are more closely related to eukaryotes than to bacteria.
Archaea