Richard hypothesis 

d/w = resource separation ratio.

d/w < 1, species cannot coexist;

1 < d/w < 3, there will be some competition between species

d/w > 3, species coexist harmoniously

TLS Online TPP Program

#Id: 7044

#XL - T Zoology

Orthogenesis - “Straight-line evolution,” held that the variation that arises is directed toward fixed goals.

TLS Online TPP Program

#Id: 9054

#XL - T Zoology

The activated β2-adrenergic receptor induces GDP-->GTP exchange on a stimulatory G protein (Gs).

TLS Online TPP Program

#Id: 7925

#XL - Q Biochemistry

Endoplasmic reticulum

Network of interconnected membranous structures within the cytoplasm of eukaryotic cells contiguous with the outer nuclear envelope.

TLS Online TPP Program

#Id: 10027

#XL - T Zoology

NF-κB stimulates expression of several anti-apoptotic proteins, including FLIP, Bcl-XL, A1/Bfl-1, c-IAP, XIAP, TRAF1, and TRAF2.

TLS Online TPP Program

#Id: 8146

#XL - Q Biochemistry