The ER captures selected proteins from the cytosol as they are being synthesized. These are of two types:

Transmembrane proteins

Water-soluble proteins

TLS Online TPP Program

#Id: 8422

#XL - T Zoology

The difference between the birth rate and the death rate determines the rate of natural increase or decrease

TLS Online TPP Program

#Id: 8423

#XL - T Zoology

Parental investment - The amount of time and energy given to an offspring by its parents. 

Longevity - The life span of an organism. Also known as Life expectancy

TLS Online TPP Program

#Id: 8424

#XL - T Zoology

TLS Online TPP Program

#Id: 8425

#XL - T Zoology

Fecundity - The number of offspring produced by an organism per reproductive episode. 

Parity - The number of reproductive episodes an organism experiences. 

TLS Online TPP Program

#Id: 8426

#XL - T Zoology

Senescence - A gradual decrease in fecundity and an increase in the probability of mortality.

TLS Online TPP Program

#Id: 8427

#XL - T Zoology

Principle of allocation - The observation that when resources are devoted to one body structure, physiological function, or behavior, they cannot be allotted to another.