Topic 7 - Ecology Flashcards
define community
populations d all the different species living in the same habitat
define ecosystem
interaction of both abiotic and biotic parts of the environment
What 4 resources do plants compete for
light, space, water and mineral ions
What resources do animals compete for
food and water
Define Interdependence
all the different species in a community depend on eachother
Give 4 examples of Biotic Factors
• Availability of food
• Arrival of a new predator
• New pathogens
• Competition between species
Give 5 examples of Abiotic factors
• Light Intensity
• Temperature
• Availability of Water
• pH and mineral content of soil
• Carbon dioxide and oxygen intake
Name and Explain the 3 types of adaptions
• Structural (body shape or structure)
• Functional (body functions of an organism)
• Behavioural (lifestyle or behaviour)
Give 5 examples of structural adaptions on a camel
• they have a hump, which is a store of fat. Fat is a thermal insulator, by storing fat in one place this allows heat loss and reduces water loss from body
• Camels have a thick coat on the upper surface of their body, insulates the top of the camel from the heat of the sun , reduces water loss
• Camels have a leathery mouth which helps them chew desert plants that often have thorns
• Long eyelashes- keep dust out their eyes
• Wide feet - prevents the camel from sinking into the sand
Give 2 examples of functional adaptions on a camel
• Camels produces concentration urine and dry faeces , to reduce water loss
• Camels can tolerate large temperature changes
Give 2 behavioural adaptions of a kangaroo rat (in desert)
• Kangaroo rats are nocturnal, avoid heat during the day
• During the day they live in burrows underground and keeps them cool and protects them from predators
