PROPERTIES OF LIFE

Maintain a stable, relatively constant internal environment.

Homeostasis

Highly organized, contains specialized, coordinated parts.

Organization

Smallest and most fundamental unit of matter

Atom

Basic unit of life

Cell

Groups of similar cells carrying out the same function

Tissue

Two or more tissue types grouped based on a common function

Organ

Consists of functionally related organs

Organ System

Individual living entities

Organism

All the individuals of a species living within a specific area

Population

Set of different populations inhabiting a particular area

Community

Consists of all the living things in a particular area together with the abiotic (non-living)

Ecosystem

Collection of all ecosystems, and it represents the zones of life on Earth

Biosphere

Total of biochemical reactions in an organism

Metabolism

small molecules are assembled into large ones, energy is required

Anabolic

large molecules are broken down into small ones, energy is released.

Catabolic

Regulated growth, cells become larger in size, and accumulate many cells.

Growth and Development

To be better fit and survive the conditions of the environment.

Adaptation and Evolution

The individuals with the helpful traits will leave more offspring in the next generation than their peers.

Natural Selection (Darwin)

Organs which are used frequently develop and the characteristics that are used seldom are lost in the succeeding generations.

Theory of Use and Disuse (Lamarck)

“irritability,” can respond to stimuli or changes in their environment.

Response

process of creating new organisms for survival.

Reproduction

Involved the fusion of the male and female gamete; the individuals produced are not identical to their parents and show variations from each other and their parents; it is a slow process; fertilization/conjugation

Sexual Reproduction

It requires only one individual; they are identical to their parents, hence clones; common on algae and fungi; fast process

Asexual Reproduction: