Which of the following adaptations help to make sharks such good predators?
0%
Rough skin
0%
Streamlined body
0%
Poor sense of smell
0%
All of the above
Q.2.
What is the most likely reason from the answers below to explain why roses have thorns?
0%
The thorns grip on walls to keep the rose plants from falling over
0%
The thorns are there to stop animals from eating the rose plant
0%
They grow thorns because they help form the flowers
0%
Thorns attract insects for pollination
Q.3.
Some tribes of the Amazon rainforest obtain a poison for their hunting arrows from certain brightly coloured frogs. Why are these frogs brightly coloured?
0%
To keep them cool
0%
It makes their skin completely waterproof
0%
The poison in the frogs makes their skin turn brightly coloured
0%
For protection
Q.4.
The jackrabbit is an animal that lives in the desert. One of its adaptations is that it has much larger ears than rabbits living in Britain. Which of the following is the least likely to be true?
0%
Bigger ears can help it to hear predators coming
0%
Hot air muffles sound so it needs bigger ears to hear
0%
It can lose heat from its ears instead of sweating
0%
Big ears are more attractive during the mating season
Q.5.
Plants compete for ...
0%
only water and nutrients
0%
water, nutrients, space to grow and light
0%
only water and light
0%
only space to grow and light
Q.6.
Why do polar bears have white fur?
0%
To keep them warm when they lie on the ice
0%
To absorb infra-red radiation from the Sun
0%
To protect them from predators
0%
It is camoflage to stop their prey spotting them
Q.7.
Organisms that are tolerant of high levels of salt, high temperatures or high pressures are called what?
0%
Extremophiles
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Extremophobes
0%
Extremocytes
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Extremophages
Q.8.
The Sahel is the area at the southern edge of the Sahara Desert in Africa. As the human population in the Sahel has increased they have created more farmland for growing crops. The populations of the various wild animals has ...
0%
increased because there is more food for them to eat
0%
decreased because their normal food and habitat has been replaced by farmers' crops
0%
increased because the farmers children like to feed the wild animals
0%
decreased because they don't like farmers
Q.9.
An adaptation is:
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A characteristic that is useful to an organism
0%
A competition between two organisms
0%
Only relevant to plants
0%
Only relevant to animals
Q.10.
For which of the following do animals compete?
0%
Mates
0%
Territory
0%
Food
0%
Light
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