HA trimers are responsible for the attachment of the virus to host cells, binding to the sialic acid. 

NA is an enzyme that cleaves N-acetyl neuraminic (sialic) acid

Within the envelope, consists of eight different strands of single- stranded RNA (ssRNA) associated with protein and RNA polymerase. 

TLS Online TPP Program

#Id: 5843

#Unit 10. Ecological Principles

Character                     early-stage     late stage 

Root to shoot ratio                    high               low

Number of seed                          many             few

Seed size                                      small             large

Biotic potential                           high              low

Productivity per biomass           high              low

NPP                                              high              low

P/R ratio                                       >1                =1

Nutrient cycling                          open             closed

Importance of detrivores           less                more

Stratification                               No                Yes 

Regeneration ability                   more             less

Resistance ability                        less               more

TLS Online TPP Program

#Id: 5844

#Unit 10. Ecological Principles

Restoration ecology is the full or partial repair or replacement of biological habitats and/or their populations that have been degraded or destroyed.

TLS Online TPP Program

#Id: 5845

#Unit 10. Ecological Principles

Complete restoration - Conservationists attempt to return a habitat to its condition prior to the disturbance. 

TLS Online TPP Program

#Id: 5846

#Unit 10. Ecological Principles

Rehabilitation - Approach aims to return the habitat to something similar to, but a little less than, full restoration

 

TLS Online TPP Program

#Id: 5847

#Unit 10. Ecological Principles

Ecosystem replacement - replaces the original community with a different one

TLS Online TPP Program

#Id: 5848

#Unit 10. Ecological Principles

Many restored habitats have greater biodiversity and ecosystem services than degraded habitats