A second slow block to polyspermy comes from the so-called zinc spark, the release of billions of zinc ions that is induced by the entry of the first sperm These released zinc ions are bind to the zona pellucida

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#Unit 10. Ecological Principles

The predator zero isocline

A specific number of prey will keep the predator population at zero growth.

N=m/es

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#Id: 769

#Unit 3. Fundamental Processes

After release of the abortive product, the enzyme again begins synthesizing RNA at position +1 called as Initiation

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#Id: 5728

#Unit 10. Ecological Principles

The evapotranspiration rate is in turn influenced by the amount of solar energy and the amount of water in the ground.

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#Id: 7217

#Unit 5. Developmental Biology

T cells initiate the adaptive immune response by interacting MHC on antigen-presenting cells that have been exposed to pathogens. 

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#Id: 2045

#Unit 8. Inheritance Biology

Genetic Maternal Effect, determination of the phenotype of an offspring not by its own genotype, but by the nuclear genotype of its mother.