Identifying the Characteristics of Life

PLANETARY ENVIRONMENT

Composed of Physical Environment and Biological Environment

Physical Environment

• Hydrosphere

• Atmosphere

• Lithosphere

Biological Environment

• Biosphere

Hydrosphere

• bodies of water

Atmosphere

• is the gas or air that envelops the Earth

Lithosphere

• (rocks, soil and its derivatives.)

Biosphere

EARTH is made up of ____________.

BIOSPHERE

• thin layer in the surface of the Earth where all living things are able to exist.

• ABIOTIC

• BIOTIC

Two components of the ecosystem

ABIOTIC

• which refers to non-living things in the ecosystem

BIOTIC

• which refers to living things in the ecosystem such as plants, animals and microorganisms.

Cellular Organization

What is this in the Characteristics of Life?

Homeostasis

• is the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function, in response to internal and external changes.

• blood glucose concentration

• body temperature

• water levels

In the human body, homeostasis includes control of:

Adaptation

What is this in the Characteristics of Life?

Reproduction

What is this in the Characteristics of Life?

Growth and Development

What is this in the Characteristics of Life?

Constant energy requirement

What is this in the Characteristics of Life?

Responsiveness/irritability

What is this in the Characteristics of Life?