Science Revision Flashcards
Define organism
an individual animal, plant, or single-celled life form:
Define ecosystem
biological community of interacting organisms and their physical environment
Define classification
classify
List the levels of classification
Kingdoms Phylum Class order family genus species
Recalls the six Kingdoms
Plantae animalia Protista Fungi Eubacteria Archaebacteria
identify common features for organisms of the same kingdoms
Eumetazoa have specialized tissues and Parazoa do not.
Both acoelomates and pseudocoelomates have a body cavity.
Chordates are more closely related to echinoderms than to rotifers according to the figure.
Some animals have radial symmetry, and some animals have bilateral symmetry.
Define heterotrophs and Autotrophs
Hetoprotrophs: Must Comsume to create energy.
Autorotroph: Produces it’s own energy.
Examples of ecosystems
taiga, marine, freshwater, grassland, coral reef, tropical rainforest, desert, Tundra
Abiotic factors
light intensity, temperature, soil moisture
Biotic factors
Plants, animals, humans
MRS N GREWW
Movement
respiration
sensitivity
nutrience
grow
respond
exchange gases
waste
water
Changes that could occur to the abiotic factors
fire is a disturbance that can be caused by lightning in a prairie or forest ecosystem
Define producer
producer is an organism that gets it’s energy from the sun
what is the process of Photosynthesis
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy
What do arrows represent in a food chain
The arrows represent the flow of energy
What is the difference between an ecosystem and biome
interactions between abiotic and biotic factors
What is biomass
Biomass is how much living material we have
What are the three symbiotic relationships
Parasitism (one benefits one harmed) Mutualism (both organisms’ benefits) Commensalism (one benefits one stays neutral
Interspecific
different species same resource
Intraspecific
same species same resource
Biodiversity
Biodiversity is the total variety of all life on earth more biodiversity more life
high biodiversity
lots of species
low biodiversity
not many species
What is the difference between a food chain and a food web
- flow of energy
- A food web is a complex network of interconnected food chains that shows the feeding relationships and energy flow among organisms in an ecosystem
