Natural Ecosystems & Human Activity Crossword Puzzle

QUESTIONS LIST:

• carbon sink: young forests take in more co2 than they release.
• carbon store: mature forests hold carbon in a balance.
• conservation: the protection and management of natural areas.
• ecosystem: all of the biotic and abiotic elements in an area.
• ecotourism: tourism that encourages sustainable, green experiences and education.
• extinction: when a species ceases to exist.
• food web: a diagram showing the relationships between species in an ecosystem.
• habitat: a place in an ecosystem where an organism lives.
• pooter : a device used for capturing small organisms.
• pyramid of numbers: a diagram that represents the number of organisms at each trophic level.
• quadrat: a frame used to count the number of plants in an area.
• random sampling: selecting sampling points at random, often using dice or a random number generator.
• systematic sampling: selecting sampling points in a defined order, often following a transect line.
• transect: where samples are collected in a straight line at equally-spaced points.
• zoo: a place where animal species are protected and used to educate and entertain