Part 2 Biology 2nd Semester Review

Beginning with the producer, which represents the correct order in a typical food chain?

• mountain lion-fox-rabbit-grass

• rabbit-fox-mountain lion-grass

• grass-fox-rabbit-mountain lion

• grass-rabbit-fox-mountain lion

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If both a mother and a father carry a dominant gene for dark eyes and a recessive gene for light eyes (Bb), what is the likelihood that their offspring will have dark eyes?

• 3 in 4

• 4 in 4

• 1 in 4

• 2 in 3

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In this simple food chain, the grass is eaten by the grasshopper which is eaten by the snake which is eaten by the hawk. Using the above scenario, which of these would have the largest amount of available energy?

• grass

• hawk

• snake

• grasshopper

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Compare the Venn diagram of sexual reproduction and asexual reproduction in plants. Where in the diagram would you add offspring different from parents?

• A

• B

• C

• D

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How could stem cells prove helpful in the treatment of cardiovascular diseases?

• Stem cells form white blood cells, which boosts the body's immunity.

• Stem cells perform apoptosis to remove old cells from the heart muscles.

• Stem cells divide to form red blood cells, which reduce hypertension.

• Stem cells can differentiate to form heart muscle cells.

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Josh is assigned a project in class to make a strand of mRNA from DNA. The DNA code that he has been assigned is CGG TCG AGT GAT. What would be the correct code for Josh to use in his transcription?

• GCC UGC TCA CTU

• GCC AGC TCA CTA

• GCC AGG TGA CTA

• GCC AGC UCA CUA

In sexual reproduction, offspring are genetically different from their parents. This is because

• only one parent is involved in reproduction.

• combined genes are received from both parents.

• reproduction occurs very rapidly.

• there are fewer variations in daughter organisms.

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Which statement about asexual reproduction is true?

• The offspring receives half the genetic information of its parent plant.

• The offspring receives equal genetic information from its parent plant.

• The offspring receives one fourth of the genetic information of its parent plant.

• The offspring develops genes similar to its parent plant.

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The amount of matter that cycles through a food web

• continually decreases.

• changes unpredictably.

• continually increases.

• stays constant.

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Mutations can occur in the chromosomes of all types of cells. Mutations that are passed on to offspring must occur in

• body cells.

• somatic cells.

• stem cells.

• gametes.

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