Tumor cells secrete a protein plasminogen activator that converts the serum protein plasminogen to the active protease plasmin.

TLS Online TPP Program

#Id: 8424

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 8425

#Unit 10. Ecological Principles

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

#Unit 10. Ecological Principles

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

TLS Online TPP Program

#Id: 8427

#Unit 10. Ecological Principles

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

TLS Online TPP Program

#Id: 8428

#Unit 10. Ecological Principles

Natural selection will favor those individuals that allocate their resources in a way that achieves maximum fitness.

TLS Online TPP Program

#Id: 8429

#Unit 10. Ecological Principles

Trade off - A giving up of one thing in return for another.

Causes of trade off

More mortality in their offspring 

Limitation of food