At the bottom of the food chain, green phytoplankton is eaten by krill and shrimp. The krill and shrimp are later eaten by squid, whales, and fish. Later, seals, penguins and birds eat the squid. Finally, killer whales/orca eat squid as well.
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Answer:
Because of the difference in amount of snowfall and rainfall. New York City also gets either very hot or very cold but Seattle is much more mild.
Explanation:
Answer:
The true statement is - Sympatric speciation only occurs in areas where there is local variation in environmental resources
Explanation:
- Sympatric speciation means the evolution of new species from an ancestor species which are occupying in the same area and no geographical barrier takes place.
- Overlapping of ranges takes place to the organism and old and new species are living i the same geographical region.
- A dam diving a fish population could lead to allopatric speciation where geographical barrier causes formation of new species which are completely different from their ancestor species.
