Food chains and food webs in the environment Practice exercise 4

A farmer cleared all the grass in his land. What will most likely happen to the rabbits and lions in the food web?

A farmer cleared all the grass in his land. What will most likely happen to the rabbits and lions in the food web?  (1 mark)

A farmer cleared all the grass in his land. What will most likely happen to the rabbits and lions in the food web?  (1 mark)

In the food chain shown below, which organism would be directly affected first if crickets were removed?

In the food chain shown below, which organism would be directly affected first if crickets were removed?  (1 mark)

In the food chain shown below, which organism would be directly affected first if crickets were removed?  (1 mark)

In the food chain shown below, which organism would be directly affected first if crickets were removed?  (1 mark)

In the food chain shown below, what will most likely happen if all the mice die out?

In the food chain shown below, what will most likely happen if all the mice die out?   (1 mark)

In the food chain shown below, what will most likely happen if all the mice die out?   (1 mark)

In the food chain shown below, what will most likely happen if all the mice die out?   (1 mark)

James noticed that spiders disappeared from his garden. What will most likely happen to the population of insects and the plants?

James noticed that spiders disappeared from his garden. What will most likely happen to the population of insects and the plants?  (1 mark)

James noticed that spiders disappeared from his garden. What will most likely happen to the population of insects and the plants?  (1 mark)

Why is it important for ecosystems to have many interconnected food chains instead of a single food chain?

Why is it important for ecosystems to have many interconnected food chains instead of a single food chain?  (1 mark)

Why is it important for ecosystems to have many interconnected food chains instead of a single food chain?  (1 mark)

Why is it important for ecosystems to have many interconnected food chains instead of a single food chain?  (1 mark)

Farmers in a village killed most of the snakes thinking they were dangerous. What unexpected effect might this have on their maize crops?

Farmers in a village killed most of the snakes thinking they were dangerous. What unexpected effect might this have on their maize crops?  (1 mark)

Farmers in a village killed most of the snakes thinking they were dangerous. What unexpected effect might this have on their maize crops?  (1 mark)

If vultures are removed from a savannah ecosystem, what is the most likely consequence?

If vultures are removed from a savannah ecosystem, what is the most likely consequence?  (1 mark)

If vultures are removed from a savannah ecosystem, what is the most likely consequence?  (1 mark)

In a forest food web, caterpillars feed on tree leaves, birds feed on caterpillars, and eagles feed on birds. If deforestation removes most trees, what will happen to the eagle population?

In a forest food web, caterpillars feed on tree leaves, birds feed on caterpillars, and eagles feed on birds. If deforestation removes most trees, what will happen to the eagle population?  (1 mark)

In a forest food web, caterpillars feed on tree leaves, birds feed on caterpillars, and eagles feed on birds. If deforestation removes most trees, what will happen to the eagle population?  (1 mark)

In a savannah ecosystem, lions mainly feed on zebras, while hyenas scavenge on remains. If lions decrease in number, what will most likely happen to the zebra and hyena populations?

In a savannah ecosystem, lions mainly feed on zebras, while hyenas scavenge on remains. If lions decrease in number, what will most likely happen to the zebra and hyena populations?  (1 mark)

In a savannah ecosystem, lions mainly feed on zebras, while hyenas scavenge on remains. If lions decrease in number, what will most likely happen to the zebra and hyena populations?  (1 mark)

The table below shows a simplified food web in a grassland ecosystem. Which organism is both a primary and a secondary consumer? OrganismFeeds onEaten by Grass—Grasshopper, Zebra GrasshopperGrassFrog, Chicken ZebraGrassLion FrogGrasshopperSnake ChickenGrasshopperHuman SnakeFrogEagle HumanChicken, Plants— EagleSnake—

The table below shows a simplified food web in a grassland ecosystem. Which organism is both a primary and a secondary consumer?  (1 mark) Organism Feeds on Eaten by Grass — Grasshopper, Zebra Grasshopper Grass Frog, Chicken Zebra Grass Lion Frog Grasshopper Snake Chicken Grasshopper Human Snake Frog Eagle Human Chicken, Plants — Eagle Snake —

The table below shows a simplified food web in a grassland ecosystem. Which organism is both a primary and a secondary consumer?  (1 mark) Organism Feeds on Eaten by Grass — Grasshopper, Zebra Grasshopper Grass Frog, Chicken Zebra Grass Lion Frog Grasshopper Snake Chicken Grasshopper Human Snake Frog Eagle Human Chicken, Plants — Eagle Snake —

The table below shows a simplified food web in a grassland ecosystem. Which organism is both a primary and a secondary consumer?  (1 mark) Organism Feeds on Eaten by Grass — Grasshopper, Zebra Grasshopper Grass Frog, Chicken Zebra Grass Lion Frog Grasshopper Snake Chicken Grasshopper Human Snake Frog Eagle Human Chicken, Plants — Eagle Snake —