The process of sperm competition is defined as ‘the competition within a single female between the sperm of two or more males for the fertilization of the ova’. Sperm competition occurs when females mate at least two males, whose sperm must exhibit spatial and temporal overlap. Successful sperm must be good at gaining dominance over those already in store and must be able to resist usurpation by the incoming sperm of later mating males. Effects of sexual selection via sperm competition are much better understood in invertebrates, especially in insects. They often use copulatory plugs that are inserted immediately after a male copulates with a female reducing the possibility of fertilization by subsequent copulations from another male.eg Indian mealmoth (Plodia interpunctella), Bumblebee. In Drosophila melanogaster (fruitflies) males release a toxic seminal fluids, ACPs (accessory gland proteins), from their accessory glands to impede the female from participating in future copulations. Other examples are blue headed wrasse, Thalassoma bifasciatum, mollies (Poecilia), crickets (Teleogryllus oceanicus). There are certain offensive behaviours for suceeding followed by antlers. an example of marine invertebrate showing gamete compatibility and sperm competition is sympatric Asterias sea stars. Solution The process of sperm competition is defined as ‘the competition within a single female between the sperm of two or more males for the fertilization of the ova’. Sperm competition occurs when females mate at least two males, whose sperm must exhibit spatial and temporal overlap. Successful sperm must be good at gaining dominance over those already in store and must be able to resist usurpation by the incoming sperm of later mating males. Effects of sexual selection via sperm competition are much better understood in invertebrates, especially in insects. They often use copulatory plugs that are inserted immediately after a male copulates with a female reducing the possibility of fertilization by subsequent copulations from another male.eg Indian mealmoth (Plodia interpunctella), Bumblebee. In Drosophila melanogaster (fruitflies) males release a toxic seminal fluids, ACPs (accessory gland proteins), from their accessory glands to impede the female from participating in future copulations. Other examples are blue headed wrasse, Thalassoma bifasciatum, mollies (Poecilia), crickets (Teleogryllus oceanicus). There are certain offensive behaviours for suceeding followed by antlers. an example of marine invertebrate showing gamete compatibility and sperm competition is sympatric Asterias sea stars..

1. The process of sperm competition is defined as ‘the competition within a single female between
the sperm of two or more males for the fertilization of the ova’. Sperm competition occurs when
females mate at least two males, whose sperm must exhibit spatial and temporal overlap.
Successful sperm must be good at gaining dominance over those already in store and must be
able to resist usurpation by the incoming sperm of later mating males. Effects of sexual selection
via sperm competition are much better understood in invertebrates, especially in insects. They
often use copulatory plugs that are inserted immediately after a male copulates with a female
reducing the possibility of fertilization by subsequent copulations from another male.eg Indian
mealmoth (Plodia interpunctella), Bumblebee.
In Drosophila melanogaster (fruitflies) males release a toxic seminal fluids, ACPs (accessory
gland proteins), from their accessory glands to impede the female from participating in future
copulations. Other examples are blue headed wrasse, Thalassoma bifasciatum, mollies (Poecilia),
crickets (Teleogryllus oceanicus).
There are certain offensive behaviours for suceeding followed by antlers.
an example of marine invertebrate showing gamete compatibility and sperm competition is
sympatric Asterias sea stars.
Solution
The process of sperm competition is defined as ‘the competition within a single female between
the sperm of two or more males for the fertilization of the ova’. Sperm competition occurs when
females mate at least two males, whose sperm must exhibit spatial and temporal overlap.
Successful sperm must be good at gaining dominance over those already in store and must be
able to resist usurpation by the incoming sperm of later mating males. Effects of sexual selection
via sperm competition are much better understood in invertebrates, especially in insects. They
often use copulatory plugs that are inserted immediately after a male copulates with a female
reducing the possibility of fertilization by subsequent copulations from another male.eg Indian
mealmoth (Plodia interpunctella), Bumblebee.
In Drosophila melanogaster (fruitflies) males release a toxic seminal fluids, ACPs (accessory
gland proteins), from their accessory glands to impede the female from participating in future
copulations. Other examples are blue headed wrasse, Thalassoma bifasciatum, mollies (Poecilia),
crickets (Teleogryllus oceanicus).
There are certain offensive behaviours for suceeding followed by antlers.
an example of marine invertebrate showing gamete compatibility and sperm competition is
sympatric Asterias sea stars.