Density-independent factors limit population size regardless of the population’s density.

Common density-independent factors include natural disasters such as tornadoes, hurricanes, floods, and fires.

TLS Online TPP Program

#Id: 10024

#XL - T Zoology

NF-κB pathway is activated by:

components of bacterial or fungal cell walls or segments of bacterial DNA bind to Toll-like receptors

TLS Online TPP Program

#Id: 5501

#XL - T Zoology

Ruderals - Ruderals are adapted to take advantage of habitat disturbance, (High disturbance,  low competition,  low stress tolerance)

Ex - Insect , annual species

TLS Online TPP Program

#Id: 9542

#XL - T Zoology

Chevalier de Lamarck

Different organisms originated separately by spontaneous generation from nonliving matter.

We now see a hierarchy of species because they differ in age

Species differ from one another because they have different needs.

TLS Online TPP Program

#Id: 5515

#XL - T Zoology

Natality means production of new individuals (offspring). 

Maximum or Absolute natality - maximum offspring produced under most suitable environmental conditions. 

Ecological natality - refers to number of offspring produced under prevailing environmental conditions.

TLS Online TPP Program

#Id: 10804

#XL - R Botany

phytoalexins, antimicrobial compounds synthesized in response to bacterial or fungal infection that help limit the spread of the invading pathogen.