Oliver Zimmermann
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GCSE sciences Quiz on B4 Revision, created by Oliver Zimmermann on 23/05/2017.

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Oliver Zimmermann
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B4 Revision

Questão 1 de 12

1

Darwin observed that many vertebrates shared what type of limb?

Selecione uma das seguintes:

  • Pentadactyl

  • Pterodactyl

  • Double jointed

Explicação

Questão 2 de 12

2

Who influenced and was involved in the development of Darwin's Theory?

Selecione uma ou mais das seguintes:

  • Albert Einstein

  • Thomas Malthus

  • Alexander Fleming

  • Alfred Wallace

Explicação

Questão 3 de 12

3

Preencha os espaços em branco para completar o texto.

Darwin observed that many shared the limb. He suggested that this may be because the vertebrates had all from one, original species.

Explicação

Questão 4 de 12

1

Biological controls have no limitations and are completely risk free.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 5 de 12

1

Selecione das listas do Menu para completar o texto.

Biological control involves the introduction of ( living, deceased, large ) organisms into an area affected by ( drought, pests, humidity ). The biological controls ( attack and eat, feed and provide food for, ignore ) the pests, eradicating the issue from the area. However, if too successful, these controls can ( eliminate, increase, support ) the food supplies of native species. They may also attack the native species. If proper research is not carried out prior to their introduction, they may prove to be ( ineffective, colourful, effective ) or a ( pest, organism, crop ) themselves.

Explicação

Questão 6 de 12

1

Tissue culture samples are often grown on...

Selecione uma das seguintes:

  • nutrient bazaar

  • nutrient agar

  • nutrient bizzarre

  • limestone

Explicação

Questão 7 de 12

1

Living cell cultures are required to study viruses.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 8 de 12

1

is a process which is commonly used to extract and reproduce desirable characteristics in livestock and crops. This is useful as it can improve the organisms being farmed, often resulting in yield, better produce and more for the farmer. However, selective breeding also has risks. are responsible for these characteristics, and by reducing the of these alleles, the opportunities for varied breeding in the future are minimised. Furthermore, by making many organisms , the farmer is allowing their produce to become more liable to wipeout in or the introduction of a or disease. More would reduce the potential coverage of these kinds of changes.

Arraste e solte para completar o texto.

    Selective breeding
    virus
    higher
    quality
    profit
    Alleles
    variety
    environmental changes
    genetically identical
    genetic variation

Explicação

Questão 9 de 12

3

Methods which can be used to control problems in farming include:

Selecione uma ou mais das seguintes:

  • Ploughing

  • Herbicides

  • Excessive watering

  • Biological controls

  • Pesticides

  • Genetic engineering

Explicação

Questão 10 de 12

1

GM insulin has some issues. The most prominent problem is:

Selecione uma das seguintes:

  • GM insulin is haram

  • GM insulin is never effective

  • Not all diabetics can use GM insulin

Explicação

Questão 11 de 12

1

Selecione das listas do Menu para completar o texto.

Herbicides and fertilisers have advantages and disadvantages. Herbicides can kill weeds, but can also kill crops. The fact that herbicides can kill crops is a ( disadvantage, advantage ). Fertilisers increase plant growth, but can cause water pollution. The fact that fertilisers increase plant growth is an ( disadvantage, advantage ). The fact that fertilisers can cause water pollution is a ( advantage, disadvantage ).

Explicação

Questão 12 de 12

1

Chemicals used to control insects on crops are called herbicides.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

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