biology classification and biodiversity
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- Created by: LEONALEONARD1
- Created on: 25-11-22 12:03
bacteria
extremely small - only made of one cell and are very simple
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blue whale
largest animal on the planet- made of millions of cells ,very complex
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KINGDOMS
ANIMALS
PLANTS
FUNGI
SINGLE CELLED ORGANISMS
BACTERIA
PLANTS
FUNGI
SINGLE CELLED ORGANISMS
BACTERIA
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vertebrates
have a back bone
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invertebrates
don't have a back bone
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plants
flowering OR non- flowering
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Kangaroos
Punch
Children
On
Family
Game
Shows
Punch
Children
On
Family
Game
Shows
Kingdom- animals
Phylum- vertebrates
Class- Mammals
Order- insectivores
Family-Erinaceidae
Genus- Erinaeceus
Species- Europaeus
Phylum- vertebrates
Class- Mammals
Order- insectivores
Family-Erinaceidae
Genus- Erinaeceus
Species- Europaeus
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genus and species
Genus and species names form the scientific name
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scientific names
using the UNIVERSAL scientific name ensures everyone in the scientific community knows which organism is being referred to.
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Morphological features
scientists compare MORPHOLOGICAL FEATURES (physical features e.g number of legs) and analyse DNA to decide the classification of an organism.
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what resources do animals need?
water
space
oxygen
food
space
oxygen
food
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what resources do plants need?
water
space
oxygen
light
carbon dioxide
space
oxygen
light
carbon dioxide
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limited resources
there Is only limited supply of resources in the environment so organisms have to COMPETE with each other for these resources
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IntrAspecific
competition takes place between members of the SAME species
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intERspecific
competition takes place between members of the different species
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population effect
competition
predation
disease
pollution
predation
disease
pollution
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biodiversity
the variety of different species and the number of individuals within those species in an area.
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endangered and extinct
endangered- species numbers are very low
extinct- species end up dying out completely
extinct- species end up dying out completely
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captive breeding programmes
individuals are bred in captivity and their young are released to boost wild populations
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CITES
legislation to prevent trade of endangered species
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SSSIs
sites of special scientific interest- protects habitats from building , access etc.
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improve biodiversity
seed/ sperm banks
national parks
local biodiversity action plans
national parks
local biodiversity action plans
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Quadrat
a frame we use to sample a small area
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using a quadrat
-we lay a quadrat down in a certain area and record the number of species found.
-we can help to reduce sampling BIAS by placing the quadrat RANDOMLY.
-we REPEAT the sampling many times and calculate a MEAN. This gives us greater ACCURACY in our final e
-we can help to reduce sampling BIAS by placing the quadrat RANDOMLY.
-we REPEAT the sampling many times and calculate a MEAN. This gives us greater ACCURACY in our final e
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Transect
A TRANSECT is a line across a habitat or part of a habitat. It can be as simple as a string or rope placed in a line on the ground. The number of organisms of each species along a transect can be observed and recorded at regular intervals.
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capture- recapture technique
1. a number of individuals are captured and marked in some way.
2. they are rereleased into their habitat
3. some time later, a second sample is taken and the number of marked and unmarked individuals is recorded
2. they are rereleased into their habitat
3. some time later, a second sample is taken and the number of marked and unmarked individuals is recorded
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population size
population size= number captured on first day X number captured on the second day
------------------------------------------
number of marked recaptured on second day
------------------------------------------
number of marked recaptured on second day
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certain assumptions
- sufficient time was allowed between samples to allow the marked individuals to mix within the population
- no individuals have died
- there has been no immigration or emigration
- the marking technique has no affect on individuals chance of survival e.
- no individuals have died
- there has been no immigration or emigration
- the marking technique has no affect on individuals chance of survival e.
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native species
species that have originated in the habitat
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alien species
a species that has been introduced into a habitat either accidentally or deliberately
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invasive species
a non- native species that tends to spread to the extent that they cause harm.
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alien species problems
- no predators - population grows out of control
- may carry a disease which it has immunity but native populations don't
- may compete with a native species causing that species to die out in the area.
-may prey on native species reducing their numbers
- may carry a disease which it has immunity but native populations don't
- may compete with a native species causing that species to die out in the area.
-may prey on native species reducing their numbers
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biological pest control
when a living organism is used to reduce the size of a population.
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chemical pest control
Pesticides are a class of chemicals designed to kill pests (rodents, insects, or plants) that may affect agricultural crops or carry diseases like malaria and typhus.
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biological control
Biological control is an environmentally sound and effective means of reducing pests and pest effects through the use of natural enemies.
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chemical control
The specific type of organism killed is revealed in the name; i.e. insecticides kill insects, herbicides kill plants, fungicides kill fungi, rodenticides kill rodents
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Other cards in this set
Card 2
Front
blue whale
Back
largest animal on the planet- made of millions of cells ,very complex
Card 3
Front
KINGDOMS
Back
Card 4
Front
vertebrates
Back
Card 5
Front
invertebrates
Back
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