Biology Questions any one Help ??

Archive SAT Subject Test Preparation
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<p>1.a clown fish regulatory avoid predators by living in the Shelter of sea anemone that eat bits of food dropped by the fish .
(A)Parasitism
(B)Commensalism
(C)Mutulaism
(D)competition
(E)Predation</p>

<p>2.which of the following best describes a climax community ?
(A)it doesn’t depend on decompose rs for the recycling of nutrients
(B)it contains more secondary consumers than primary consumer
(C)it consists of single dominant species thriving in its habitat
(D)its species composition remains stable over time
(E)it doesn’t retain inorganic chemicals
3.the most dangerous aspect of the use of the pesticide DDT is that it :
(A)kills plants as well as insect
(B)accumulate in higher strophic levels
(C)leaches nitrogen from the soil
(D)depletes the ozone layer
(E)can be used as food by harmful bacteria</p>

<p>4.which of the following would be the most likely explanation if the osprey population in this ecosystem were to decline drastically
(A)the Pesticide interfered with a critical biochemical process in ospreys
(B)the ospreys would not drink the polluted water
(C)competition for food from the fish population was too strong
(D)the pesticide prohibited the phytoplankton from photosynthesizing
(E) the osprays migrated to a new habitat that was free of the pesticide</p>

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<p>For number 1 it is B) Commensalism because the clown fish is helped but is not harming the anemone.
For number 3 it is A) Kills plants as well as insects
For number 4 you left off information given to you</p>

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<p>^dude anybody who takes biology can get number 1 right…

  1. C!!! clown fish is being helped because the sea anenome provides shelter. But, the clownfish is helping the sea anemome because it is providing food for it! both helping each other!!
  2. D by definition
  3. B</p>