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: 6507

#Unit 7. System Physiology – Animal

Some of the tyrosine is formed from phenylalanine, by Phenylalanine hydroxylase

TLS Online TPP Program

#Id: 10433

#Unit 4. Cell Communication and Cell Signaling

Carcinogens can be classified into two categories: 

1. Direct-acting carcinogens

2. Indirect-acting carcinogens

TLS Online TPP Program

#Id: 5830

#Unit 10. Ecological Principles

Succession, the gradual and continuous change in species composition and community structure over time.

TLS Online TPP Program

#Id: 4451

#Unit 13. Methods in Biology

Transmission electron microscope- examine viruses or the internal ultrastructure in thin sections of cells

TLS Online TPP Program

#Id: 6866

#Unit 3. Fundamental Processes

HP1 (heterochromatin protein 1) is one of the most important Su(var) proteins. The HP1 chromodomain binds to histone H3 that is trimethylated at lysine 9 (H3K9me3).