Polar bears and seals have multiple layers of fat, plumage, or fur to keep warm.

Arctic birds often have thick layers of feathers.

TLS Online TPP Program

#Id: 9167

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 7446

#Unit 5. Developmental Biology

Adenylate cyclase A (ACA), is responsible for the synthesis of cAMP.

TLS Online TPP Program

#Id: 9373

#Unit 4. Cell Communication and Cell Signaling

Smad7 binds to the activated RI receptors and blocks its ability to phosphorylate Smad2 or Smad3. 

TLS Online TPP Program

#Id: 1344

#Unit 4. Cell Communication and Cell Signaling

RAS is connected to the membrane by a prenylated (lipid) tail.

TLS Online TPP Program

#Id: 8218

#Unit 2. Cellular Organization

Sorting signal that directs lysosomal hydrolases from the TGN to the late endosome is- Mannose 6-phosphate (M6P).