Oliver Zimmermann
Test por , creado hace más de 1 año

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

23
1
0
Oliver Zimmermann
Creado por Oliver Zimmermann hace casi 7 años
Cerrar

B4 Revision

Pregunta 1 de 12

1

Darwin observed that many vertebrates shared what type of limb?

Selecciona una de las siguientes respuestas posibles:

  • Pentadactyl

  • Pterodactyl

  • Double jointed

Explicación

Pregunta 2 de 12

2

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

Selecciona una o más de las siguientes respuestas posibles:

  • Albert Einstein

  • Thomas Malthus

  • Alexander Fleming

  • Alfred Wallace

Explicación

Pregunta 3 de 12

3

Rellena los espacios en blanco para completar el texto.

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

Explicación

Pregunta 4 de 12

1

Biological controls have no limitations and are completely risk free.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 5 de 12

1

Selecciona la opción correcta de los menús desplegables para completar el 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.

Explicación

Pregunta 6 de 12

1

Tissue culture samples are often grown on...

Selecciona una de las siguientes respuestas posibles:

  • nutrient bazaar

  • nutrient agar

  • nutrient bizzarre

  • limestone

Explicación

Pregunta 7 de 12

1

Living cell cultures are required to study viruses.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 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.

Arrastra y suelta para completar el texto.

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

Explicación

Pregunta 9 de 12

3

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

Selecciona una o más de las siguientes respuestas posibles:

  • Ploughing

  • Herbicides

  • Excessive watering

  • Biological controls

  • Pesticides

  • Genetic engineering

Explicación

Pregunta 10 de 12

1

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

Selecciona una de las siguientes respuestas posibles:

  • GM insulin is haram

  • GM insulin is never effective

  • Not all diabetics can use GM insulin

Explicación

Pregunta 11 de 12

1

Selecciona la opción correcta de los menús desplegables para completar el 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 ).

Explicación

Pregunta 12 de 12

1

Chemicals used to control insects on crops are called herbicides.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Anterior
Siguiente