Signal sequences

contain one or more positively charged amino acids adjacent to a continuous stretch of 6–12 hydrophobic residues (known as the hydrophobic core)

TLS Online TPP Program

#Id: 1960

#Unit 10. Ecological Principles

Quadrats- A square frame often, but not always, measuring 50 × 50 cm.

TLS Online TPP Program

#Id: 1961

#Unit 10. Ecological Principles

A cohort is a group of same-aged young which grow and survive at similar rates.

A population is often made up of organisms from a variety of different cohorts.

TLS Online TPP Program

#Id: 1962

#Unit 10. Ecological Principles

A life table provides data on the number of individuals alive in different age classes and the age-specific survival or mortality rates in these age classes.

TLS Online TPP Program

#Id: 1963

#Unit 10. Ecological Principles

The cohort life table follows a cohort of individuals from birth to death. 

Cohort life tables can be used to estimate the age-specific probabilities of survival.

TLS Online TPP Program

#Id: 1964

#Unit 10. Ecological Principles

A static life table accomplishes the same goal, but instead of following a cohort of individuals from life to death, data is gathered on the age structure of a given population at one point in time.

TLS Online TPP Program

#Id: 1966

#Unit 10. Ecological Principles

Life table for the Beave