Pasteur made a series of flasks with long, twisted necks (“swan-neck” flasks)

TLS Online TPP Program

#Id: 8007

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 7995

#Unit 10. Ecological Principles

The habitat of an organism is the place, or physical setting, in which it lives.

TLS Online TPP Program

#Id: 7996

#Unit 10. Ecological Principles

An organism’s niche includes the range of abiotic and biotic conditions it can tolerate. 

In the case of the cottontail rabbit, its niche includes the ranges of temperature and humidity that it can tolerate, the plants that it eats, and the predatory hawks and coyotes with which it coexists.

TLS Online TPP Program

#Id: 7997

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 7998

#Unit 10. Ecological Principles

The fundamental niche of a species is the range of abiotic conditions under which species can persist. 

This includes the range of temperature, humidity, and salinity conditions that allow a population to survive, grow, and reproduce.

TLS Online TPP Program

#Id: 7999

#Unit 10. Ecological Principles

The range of abiotic and biotic conditions under which a species persists is its realized niche. 

The realized niche determines the geographic range of a species or of various populations that compose a species.