Many species of macroparasites cannot complete their life cycles without the presence of at least two different host species

Definitive host - Exhibit sexual reproduction 

Intermediate hosts – Nonreproducing

TLS Online TPP Program

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#Unit 7. System Physiology – Animal

In L cells, preproglucagon is processed primarily to glicentin, & glucagon-like polypeptides 1 and 2. Some oxyntomodulin is also formed

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

Caspase-8 cleaves and activates several effector caspases, caspase-3, 6, 7 to complete apoptotic cell death.

TLS Online TPP Program

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#Unit 2. Cellular Organization

Myosins have 

Motor head domain

Lever-arm neck domain

Cargo-binding tail domain

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#Unit 2. Cellular Organization

Exon sequences are conserved by the negative selection of individuals in which the sequences have changed

TLS Online TPP Program

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#Unit 3. Fundamental Processes

Instead, a dedicated protein (a special elongation factor) named SELB in complex with GTP is required to deliver Sec–tRNASec to the ribosome.