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If two species use the same food source at different times they are what?
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Explain how Darwins finches illustrate the principle of character displacement?
This new species needed the same resources so they competed for food and they started to evolve and soon had new beaks. Now that they evolved, they could eat different food and actually survived!
Why it is good for a place to have a high biodiversity?
Because the organisms have a stronger interaction and food chain with more speicies present. Also, say a species was in danger because its food source was also dying out. With higher biodiversity, there is a better chance the species can find some replacement or change its food source. Also the saying "One man's trash is another man's treasure" relates to bodiversity. SOmething one species finds as unhelpful or nothing may be of vital importance to another.
Can another food source take the place of the cotyledons?
A plant cannot get its food from other sources other than the cotyledons. There are different types of cotyledons and each has a different shape.
Why does each species have its own niche?
Because each species has to have its own role in the environment
What are characterized by complex food webs many different species of organisms and little or no succession?
Climax communities.
Why should populations of different species in oceans should be monitored?
populations of different species in the ocean should be monitored so that there is always source of food for the other ocean animals.
What will happen if an organism's food source disappears?
The species dies out!
Why is a food chain a better description of feeding relationships in a community than in a food chain?
A food web provides more detailed information about how the different species are dependent on each other.i.e as a source of food and survival.
Why it is important for an animal to have more than one source of food?
because a food source can become extinct and if the other organisms only food source becomes extinct the species would starve and become extinct and other species will become extinct as well.
Why are specialists more susceptible to extintion than generalists?
Specialists depend on one species for their food. If that species were to disappear, they would have no food source.
How do niches help organisms of different species avoid competition?
If the two do not share the same niche, they will eat different food. That decreases the probability of the species competing for the same type of food. Also, they will not fight over females because they are a different species. Animals within a species avoid competition by marking their own territory, and avoiding the territory of others. Some fishes actually change color as a display of emotion.
What is a lady bird's habitat?
the same as the male of the species. different birds live in different places.
What are two different bird species that are adapted to obtain food in their environment?
There are many different bird species that are adapted to obtain food in their environment. Finches are an excellent example.
Why does extinction mess up the food chain?
Imagine a very short food chain Species A eats species B, and species B eats species C If species B becomes extinct, then species A loses a source of its food, and its survival may become threatened; and species C loses its predator and its population may grow to become a plague to its environment.
What would happen if the competition for food leads to extinction?
This frequently happens. Loss of habitat leads to loss of food sources and shelter. Often, when new non-native species are introduced, it is usually the introduced species that thrives and the native species that becomes extinct. Ultimately, what happens is that yet another species gets marked down as extinct, but nothing is done to address the problem. .. On the other hand, would a species "get marked down" if no observation of it is made? would another species benefit from the extintion? would a species that benefits from the the more plentiful food source consider it "a problem"? would another species suffer a change of diet? is there a species that relied on the feces of the extinct species, or the breath of the species, or some intestinal function, or needed the food source to be kept in check that the extinct species was competing for? would another species be able to use the winning species as a food source, or symbiont, or ...
How are hybrids are produced?
hybrids are produced when two different species interbreed
How are ferns important to people?
As a group of plants, ferns are not of great economic value. Many different species have been used as a minor food source and for medicine in various parts of the world.
