The superior competitor hypothesis suggests invasives are more efficient users of natural resources than natives.

TLS Online TPP Program

#Id: 9829

#Unit 6. System Physiology – Plant

The phyB mutants are deficient in chlorophyll

phyB also appears to regulate LFRs, such as photoreversible seed germination

Mutants that lack phyA respond normally to red light, whereas mutants deficient in phyB are unable to respond to low-fluence red light

TLS Online TPP Program

#Id: 8804

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 9889

#Unit 4. Cell Communication and Cell Signaling

Apoptotic cells attract phagocytes by releasing the lipid mediator lysophosphatidic acid, which functions as a chemoattractant

TLS Online TPP Program

#Id: 440

#Unit 2. Cellular Organization

Runs of two or more AT base pairs facilitate the bending of DNA, while runs of two or more GC base pairs have the opposite effect. 

 

TLS Online TPP Program

#Id: 6569

#Unit 7. System Physiology – Animal

Glucagon secretion is increased by stimulation of the sympathetic nerves to the pancreas, & sympathetic effect is mediated via β-adrenergic receptors and cAMP