Biology Y11 Unit 4A , 4B Flashcards
What is a habitat?
The place where an organism lives or resides
What then is an organism?
An organism is something that can do
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
A group of organisms of the same species is called a ——————-
Lots of populations living together are called a ——————–
The community is the living (or biotic) part of an ————
the ecosystem includes ————– or ———- factors in one environment.
Different ecosystems make up the ————–
A group of organisms of the same species is called a population
Lots of populations living together are called a community
The community is the living (or biotic) part of an ecosystem
the ecosystem includes biotic or abiotic factors
Different ecosystems make up the biosphere
—————–are organisms that break down material and help to recycle nutrients
Decomposers are organisms that break down material and help to recycle nutrients
—————– are plants which photosynthesise to produce food
Producers are plants which photosynthesise to produce food
————- are animals that eat plants or other animals
Consumers are animals that eat plants or other animals
Ecology is the study of the interaction of the organisms in an ecosystem with their…………………………… This is made up of biotic or living factors and abiotic or non-living factors.
In an ecosystem a group of organisms of the same species living in one place is a ………………… Different groups of species living in the same place or habitat is called a ………….
Ecology is the study of the interaction of the organisms in an ecosystem with their…environment………… This is made up of biotic or living factors and abiotic or non-living factors.
In an ecosystem a group of organisms of the same species living in one place is a ……population…… Different groups of species living in the same place or habitat is called a ……community…….
What is Ecosystem?
the community and physical environment that is present
A population is ——————–
A community is ——————
A habitat is —————-
An ecosystem is ————
Biotic factors includes ——————such as————–
Abiotic factors includes ————- such as ————-
Ecosystems can vary greatly in size and scale
A small ecosystem might be a garden pond
A large ecosystem might be the whole of Antarctica
A population is defined as a group of organisms of the same species living in the same place at the same time
A community includes all of the populations living in the same area at the same time
Within a community, each species depends on other species for food, shelter, pollination, seed dispersal etc
If one species is removed it can affect the whole community
This is called interdependence
A habitat is the place where an organism lives
E.g. badgers, deer, oak trees and ants are all species that would live in a woodland habitat
An ecosystem is defined as all the biotic factors and all the abiotic factors that interact within an area at one time
Biotic factors includes all the living components such as plants and animals
Abiotic factors includes all the non-living components such as light intensity, mineral ions, water availability
Ecosystems can vary greatly in size and scale
A small ecosystem might be a garden pond
A large ecosystem might be the whole of Antarctica
what is a quadrat ?.
A quadrat isusually a square made of wire. It may contain further wires to mark off smaller areas inside, such as 5 × 5 squares or 10 × 10 squares. The organisms underneath, usually plants, can be identified and counted.
Complete the quadratic questions in your workbook (4A2)
To study the number and distribution of plants in an area, a wooden or metal frame is used. This is called a …………………. . To compare numbers of organisms in two areas several frames need to be placed at ………………………………… places in each area. The numbers in each frame are combined and then divided by the total number of frames. This is done to calculate the ………………. for each area. By using several frames we improve the ………………………of the data and make it easier to detect any …………………………. results.
quadrat;
random/ different;
average/ mean;
reliability;
anomalous / unusual / odd ;
To study the number and distribution of plants in an area, a wooden or metal frame is used. This is called a …………………. . To compare numbers of organisms in two areas several frames need to be placed at ………………………………… places in each area. The numbers in each frame are combined and then divided by the total number of frames. This is done to calculate the ………………. for each area. By using several frames we improve the ………………………of the data and make it easier to detect any …………………………. results.
quadrat;
random/ different;
average/ mean;
reliability;
anomalous / unusual / odd ;
Explain what is meant by the term biodiversity.
Biodiversity is the amount of variation shown by species in an ecosystem.
Biodiversity is combination of two measurements what are they?
The number of different species present (species richness)
The relative abundance of each species
