TLS Online TPP Program

#Id: 8815

#Unit 6. System Physiology – Plant

fluorescence occurs in nanoseconds (ns, 10–9 s); however, photochemistry in photosynthetic organisms occurs more rapidly, in picoseconds (ps, 10–12 s). Thus, when the 1,000‐fold more rapid pathway of photochemistry is available, little fluorescence is observed and photosynthesis proceeds with high efficiency. 

TLS Online TPP Program

#Id: 3226

#Unit 3. Fundamental Processes

Numerous proteins, including XP products and the transcription factor TFnH, are involved in eukaryotic nucleotide excision repair. 

TLS Online TPP Program

#Id: 8982

#Unit 11. Evolution and Behavior

The introduction of new genetic variation into an inbred population, called genetic rescue.

TLS Online TPP Program

#Id: 7816

#Unit 10. Ecological Principles

Animals use behavior to survive in cold temperatures

Curling up into a ball to reduce the exposed surface area. 

Penguins may huddle together to conserve heat. 

Bears hibernate, spending the winter in a deep sleep.

TLS Online TPP Program

#Id: 2005

#Unit 8. Inheritance Biology

Melanin protects against the harmful effects of sunlight, and people with red hair are usually fair skinned and particularly susceptible to skin cancer.