Adaptations And The Environment Flashcards
Adaptations
Organisms, including microorganisms, have characteristics(features) which increase an organism’s chance of survival in the environment in which it lives.
Deseret animals adaptations
- Large surface are of body compared to volume. This helps them to lose more body heat
- they lose less water by producing small amounts of concentrated urine
- they make very little sweat
- they have sandy color camouflage, which helps them avoid predators
Arctic animals adaptations
- small surface area compared to volume, this prevent lose of heat
- thick layer of body fat for insulation, also source of energy
- white fur for good camuflage
Desert plants adaptations
- water storage tissues
- shallow but extensive roots to absorb water quickly over a large surface area
- deep roots to the storage of underground water
Food chain
Shows what eats what. Always starts with producer.
Tropic level in good chain
Each stage of food chain is called tropic level. There’s less energy and less biomass, every time you move up a tropic level.
Pyramid of biomass
Information about biomass can be used to construct a pyramid of biomass to represent food chain.
Energy loss in food chains
- respiration - every organism in food chain respires. It supplies energy for all life processes. Most of the energy as a heat is lost to its surroundings.
- uneaten material-some of the material which makes up animals is not eaten and is decayed
- waste products-energy is lost by waste material from animals
What organisms require?
To survive and reproduce, organisms require a supply of materials from their surroundings and from other living organisms there.
Plant competition
Often compete with each other for light, space, water and the nutrients from the soil.
Animals competition
Often compete with each other for food, mates and territory.
Extremophiles organisms
Live in environments that are very extreme, containing a high level of salt, high temperature or high pressures. A lot of them are microorganisms.
Heterotropic feeding
Animals cannot make their own food. They have to eat plants or other animals.
Herbivores
Have teeth adapted for grinding up plant cells.
Carnivores
Have teeth adapted for tearing flesh or crushing bones.