4a The Organism in the Environment

Question 1

What is an ecosystem?

Answer 1

• All the organisms (living things) and physical factors (non living things) in a self contained area
• eg. foxes, birds, oak tree, grass, soil pH

Question 2

What is a community?

Answer 2

• All of the different living organisms that live in a habitat
• eg. foxes, birds, oak tree, grass

Question 3

What is population?

Answer 3

• A group of organisms of the same species, living in the same place/habitat at the same time
• eg. the number of foxes living in the same habitat

Question 4

What is a habitat?

Answer 4

• The place where an organism lives

Question 5

What are some physical factors?

Answer 5

• Amount of Rainfall
• Light intensity
• Temperature
• pH of the soil

Question 6

What are some biological factors?

Answer 6

• Competition for food and water
• Number of predators
• Competition for nesting sites

Question 7

What are some natural ecosystems?

Answer 7

• Woodland
• Lake
• Sea

Question 8

What are some artificial ecosystems?

Answer 8

• Greenhouse
• Fish Farm
• Fish Tank

Question 9

What is a sweepnet?

Answer 9

• Are nets attached to sticks. They are used to collect insects in long grass or moderately dense woodland where there are lots of shrubs

Question 10

What is a quadrat?

Answer 10

• Are square frames that have sides 0.5m long. You throw them randomly on the ground, then count and record the number of each species. You can then estimate the population of each species in a given area

Question 11

What is a pooter?

Answer 11

• Are containers used to collect insects easily, without harming them

Question 12

What is a pitfall trap?

Answer 12

• Are containers set in the ground that are used to catch small insects eg. beetles