Copepods primary producer, phytoplankton secondary consumer, herring tertiary consumer, sea lion quaternary consumer, and the killer whale is the primary consumer.
Oral polio vaccine is highly effective and inexpensive (about US$0.10 per dose, or US$0.30 per child and its availability has bolstered efforts to eradicate polio. A study carried out in an isolated Eskimo village showed that antibodies produced from subclinical wild virus infection persisted for at least 40 years. Because the immune response to oral polio vaccine is very similar to natural polio infection, it is expected that oral polio vaccination provides similar lifelong immunity to the virus.
Contact immunity to polio can occur when attenuated poliovirus derived from the oral polio vaccine is excreted, and infects and indirectly vaccinates unvaccinated individuals.
They will compete with other shellfish and clams and hurt their populations.
The plants can grow with out being disturbed by the pests and it doubles the harvest also when the plants produce seeds the seeds will contain the pest-resistant genes so you can grow more plants that contain it<span />
