Use the incomplete diagram below, illustrating some of the steps involved in eutrophication to answer the following questions

What would be a likely entry for box A?

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#Question id: 4608

#SCPH28 | Zoology

What must be true of any organ described as vestigial?

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#Question id: 1580

#SCPH01 Biochemistry

Advantages of Toxoid (inactivated exotoxin) can be

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#Question id: 944

#SCPH28 | Zoology

Because they lack aspartate kinase and aspartate semialdehyde dehydrogenase, ________ cannot synthesize lysine, methionine or threonine.

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#Question id: 4953

#SCPH06 I Botany

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which graph below, if the results were produced abiotically, would have the greatest promise for revealing important information about the origin or Earthʹs first genetic system?

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#Question id: 7005

#SCPH01 Biochemistry

The primitive streak in a bird is the functional equivalent of :