The Forces of Evolution

Mutation, 

Genetic drift

Gene flow or migration

Selection

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#XL - R Botany

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#XL - T Zoology

Type of iteroparity

Seasonal iteroparity- Many species, such as birds or mammals, or temperate forest trees, have distinct breeding seasons Continuous iteroparity- individuals reproduce repeatedly and at any time of the year. 

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#XL - Q Biochemistry

Once the ER signal sequence emerges from the ribosome, it is bound by a signal recognition particle (SRP)

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#XL - Q Biochemistry

In animal cells,

Most of the glycosaminoglycans of the extracellular matrix are synthesized in golgi apparatus.

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#XL - T Zoology

Galactolipids are localized in the thylakoid membranes (internal membranes) of chloroplasts; they make up 70% to 80% of the total membrane lipids of a vascular plant, and are therefore probably the most abundant membrane lipids in the biosphere.