Q.1
Lions live in groups (prides). The dominant male lions sometimes chase some of the male cubs away as they approach sexual maturity, making them leave the pride. Why do you think this is?
  • Less competition for mates in the future
  • Less competition for water in the future
  • Less competition for space in the future
  • The cubs are not cute any more
Q.2
Which of the following best describes the population curve for a predator-prey relationship?
  • Predator numbers decline some time after prey numbers drop
  • Predator numbers decline some time before prey numbers drop
  • Predator numbers decline at exactly the same time as prey numbers drop
  • Predator numbers are always higher than prey numbers
Q.3
In North America, the lynx is an animal that feeds on hares. Which of the following features of the hare will help it run away before a lynx can get close enough to catch it.
  • Big ears
  • Fur
  • Eyes on the side of the head
  • Excellent sense of smell
Q.4
Human beings live all over the world. This means that we must compete with plants and animals. What are we competing for?
  • Animals - food onlyPlants - water only
  • Animals - space onlyPlants - food only
  • Animals - food and spacePlants - water and space
  • Animals - food, water and spacePlants - water and space
Q.5
The Forestry Commission have planted lots of trees in Scotland, often in quite wet and boggy countryside. These trees are mainly Sitka spruce, which are evergreen and are planted close together. Which of the following might explain why there are not many plants growing on the forest floor?
  • Very little sunlight can get though all year round
  • The trees take up all the water
  • The other plants were destroyed when the land was plowed to plant the trees
  • The tree roots get in the way
Q.6
What happens to plants and animals that are unsuccessful in competing for resources?
  • The other plants and animals help them
  • They change color
  • They die or move to another place
  • It makes them stronger
Q.7
Some students grew some radish seeds. The instructions said they needed to be planted 2cm apart. In the experiment, they planted some 0.5cm apart, some 1cm apart and some at the correct distance. They observed that the closer the seeds were planted ...
  • the better they grew
  • they had a better color
  • the tuber grew longer
  • they grew taller at first and after a week they didn't grow much more
Q.8
When the gray squirrel was introduced to parks in Britain in the 1870s, the numbers of the native red squirrels decreased. Why?
  • The two types of squirrel mated and their offspring were always gray because red fur is a recessive gene
  • Gray squirrels are more successful at competing for water
  • The people who introduced gray squirrels didn't like red squirrels and killed them
  • The gray squirrel is more successful in competing for food
Q.9
Working together can give organisms an advantage in competition. What is this called?
  • Antagonism
  • Parasitism
  • Synergism
  • Mutualism
Q.10
Ladybugs feed on insects called aphids. What happens when the number of aphids increases?
  • You get more ladybugs
  • You get fewer ladybugs
  • The ladybugs get fatter
  • The aphids get thinner
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