Invertebrates generally have fairly high production efficiencies  (about 10–50%) than vertebrate. Ectotherms, typically have production efficiencies of around 10%, and birds and mammals, which are endotherms, have production efficiencies in the range of 1–2%.

TLS Online TPP Program

#Id: 9931

#Unit 4. Cell Communication and Cell Signaling

Original antigenic sin

Tendency to focus an immune attack on those structures that were present during the original.

This means that our immune systems effectively ignore the subtle changes occurring each year in pathogens

TLS Online TPP Program

#Id: 1770

#Unit 4. Cell Communication and Cell Signaling

CD28 on the T cell and CD80/86 (B7) on the APC provided the costimulatory signal required for T-cell activation.

TLS Online TPP Program

#Id: 6043

#Unit 10. Ecological Principles

Biomes:  A biome is a collection of ecosystems sharing similar climatic conditions. A biome has distinctive abiotic factors and species which distinguish it from other biomes.

TLS Online TPP Program

#Id: 8120

#Unit 1. Molecules and their Interaction Relevant to Biology

Arachidonic acid and some eicosanoid derivatives.

TLS Online TPP Program

#Id: 6025

#Unit 3. Fundamental Processes