Chapter 17 Practice Paper: Evolution, selection and classification — question paper

Section A: Multiple-choice questions[10 marks]

Choose one answer for each question. Each question is worth 1 mark.

1. 1

   Natural selection acts directly on

   1. Aindividual organisms’, wishes
   2. Bgenetic variation in a population
   3. Cthe weather
   4. Dlearned skills only
   ( )
2. 2

   Darwin concluded that all species

   1. Anever change
   2. Bshare common ancestors
   3. Cwere created separately last week
   4. Devolve toward perfection
   ( )
3. 3

   Resistant bacteria spread because antibiotics

   1. Akill the resistant ones
   2. Bfeed the bacteria
   3. Chave no effect
   4. Dkill the non-resistant competitors
   ( )
4. 4

   Selective breeding reduces

   1. Agenetic variation
   2. Bcrop yield
   3. Cthe number of parents needed
   4. Dgrowth speed
   ( )
5. 5

   Genetic engineering uses enzymes to

   1. Adigest food
   2. Bclone embryos
   3. Cclassify organisms
   4. Dcut and transfer genes between genomes
   ( )
6. 6

   GM crops with insect resistance need

   1. Aless pesticide
   2. Bmore pesticide
   3. Cno sunlight
   4. Dno water
   ( )
7. 7

   (Biology only) Tissue culture grows plants from

   1. Aseeds only
   2. Bcut stems in soil only
   3. Csmall groups of cells
   4. Dpollen grains
   ( )
8. 8

   (Higher, Biology only) The first step in speciation is that two groups become

   1. Aidentical
   2. Blarger
   3. Cisolated
   4. Dextinct
   ( )
9. 9

   The Linnaean order from broad to narrow is

   1. Aspecies → genus → kingdom
   2. Bgenus → kingdom → species
   3. Cspecies → kingdom → genus
   4. Dkingdom → genus → species
   ( )
10. 10

    The three domains are Archaea, Bacteria and

    1. AProtista
    2. BFungi
    3. CEukaryota
    4. DViruses
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided.

1. 11

   This question is about Darwin.

   1. (a)

      State two observations Darwin made.

      [2]
   2. (b)

      State his conclusion about better-adapted organisms.

      [1]
   3. (c)

      Explain one reason the theory was not accepted immediately.

      [2]
2. 12

   This question is about selective breeding and engineering.

   1. (a)

      Describe how selective breeding is carried out.

      [2]
   2. (b)

      Describe how genetic engineering produces bacteria that make human insulin.

      [2]
   3. (c)

      State one concern about GM crops.

      [1]
   4. (d)

      State one problem caused by selective breeding in some dog breeds.

      [1]
3. 13

   (Higher, Biology only) This question is about speciation.

   1. (a)

      Describe how isolation starts the process.

      [1]
   2. (b)

      Explain how the isolated groups change over generations.

      [3]
   3. (c)

      State when the groups are called separate species.

      [1]
4. 14

   This question is about classification.

   1. (a)

      State the correct order of the ranks genus, kingdom and species, from broadest to narrowest.

      [1]
   2. (b)

      Name the scientist whose system this comes from, and name the two parts of a binomial name.

      [2]
   3. (c)

      Name the evidence that led to the three-domain system.

      [1]