12 Oct Flashcards
(13 cards)
What is the definition of nitrites?
A form of Nitrogen (NO2-) that occurs in soil. It occurs at the first stage of nitrification by bacteria.
What is the definition of nitrates?
A form of Nitrogen (NO3-) that plants and animals can use to form proteins. Absorbed by plants.
What is the definition of ecotourism?
Responsible travel to natural areas where the environment is conserved and where the well-being of the local people is improved
What is the definition of biodiversity?
The variety of life forms that occur on earth
What is the definition of endemic?
Occurring only in one country or region and nowhere else in the world
What is the definition of a prokaryote?
An organism whose cells contain no membrane-bound organelles i.e. They have no true nuclei
What is the definition of an eukaryote?
An organism whose cells have membrane-bound organelles i.e. They have true nuclei
What is the definition of a saprophyte?
An organism that relies on dead organic matter as a food source
What is the definition of a parasite?
An organism which is dependent on other living organisms for food.
What is the definition of a bryophyte?
A group of organisms under the kingdom plantae, specifically moss, liverwort and hornwort
What is the definition of a pteridophyte?
A group of organisms under the kingdom plantae, specifically ferns
What is the definition of a gymnosperm?
A group of organisms under the kingdom plantae, specifically those bearing seeds with no flowers. For example conifers, cycads, gnetales and ginkgo
What is the definition of angiosperms?
A group of organisms under the kingdom plantae, specifically those which flower
