Food chains
What are producers? Can you also name an example?
Producers make their own food through photosynthesis. Examples are plants, and kelp, seaweed.
What is a food web?
Many food chains that are connected together.
What are overfishing and overhunting? What can they cause?
This is when people hunt or fish too many of an animal species, causing their population/numbers to go down a lot. It can cause extinction.
True or false: governments create nature reserves as special places where hunting and fishing are allowed.
False: they are to protect endangered animals and plants.
What do primary consumers eat? Can you name an example?
Primary consumers eat producers. All herbivores and many omnivores.
What is a prey? Name an example.
It is an animal which is eaten by a predator. Example: rabbit, mouse, deer, fish, zebra, etc
How can you protect biodiversity?
Picking up litter, planting trees, avoiding things that produce greenhouse gases.
What is biodiversity?
This is when there are many different species of plants and animals in an environment/habitat/ecosystem.
True or false: a lion is a primary consumer.
False. A lion isn't primary consumer because it needs to eat other animals, not plants/producers. It can be a secondary or tertiary consumer.
What is a predator? Name an example.
It is an animal that captures, kills and eats an animal of another species. Example: lion, tiger, cat, bear, wolf, shark, etc
What is habitat destruction?
This is when animals lose their homes/habitats because of pollution, cutting down of trees, fires, growth of cities, etc.
What is extinction?
This is when a species completely disappears/dies out. Past examples: dinosaurs, dodo birds
What is a secondary consumer? Can you name an example?
Secondary consumers eat primary consumers. Examples are all carnivores and many omnivores.
What is a scavenger? Can you name an example?
They eat dead plants and animals that other living things kill. Example: piranhas.
What is deforestation?
Large numbers of trees are cut down, causing habitat destruction. Land is used for farming and other purposes.
What is an endangered species? Can you name an example?
An animal that is in danger of going extinct. Pandas, polar bears, Iberian lynxes.
What are decomposers? Can you name an example?
They break down dead organisms and turn them into nutrients. Plants use these nutrients (and the sun) to grow. Examples: bacteria and fungi.
What is a parasite?
It relies on another living thing, called the host. This is beneficial for the parasite, but can harm the host.
What is the cause of global warming? What is a consequence of global warming?
It is caused by greenhouse gases (air pollution, factories, cars, etc).
Consequences are: temperatures of the oceans rise, affecting coral reefs. Arctic snow and ice melt.
What activities are not allowed in nature reserves and national parks?
Fishing and hunting.