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Biodiversity and evolution

A species is a group of individual organisms that are very similar in appearance, anatomy,
physiology, biochemistry and genetics, whose members are able to freely interbreed and
produce fertile offspring.

A habitat is the place where the individuals of a species live. The locality is specific and…

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the surface. Water should be placed at the bottom to prevent the animals
from climbing out. It should be sheltered from rain to prevent it filling up with
water in times of rainfall.
You'd use a sweepnet for flying insects. A pooter can be used in addition to
this to…

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Global biodiversity:

Global biodiversity is the total number of species on Earth. This includes the number of both
names and unnamed species. It is agreed by many scientists that there are a number of
species that are undiscovered or are known, but have not yet been named.

Different scientists have…

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o food chains may be altered ­ either positively by the introduction of new
crops that previously could not survive in the area's conditions, or negatively,
with certain plants potentially becoming unable to live in the new conditions,
reducing the source of food for certain animals

The importance of biodiversity:…

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o There are people who believe that we have a moral responsibility to conserve
biodiversity for human generations
o Other people believe that biodiversity should be maintained for religious and
spiritual reasons
Aesthetic reasons:
o There are many people who believe that we should conserve biodiversity
because it brings joy…

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With the need to maintain biodiversity rising, especially due to the growing human
population and increased development globally, there are two main types of conservation:

1. In-situ conservation ­ this is the conservation of a species on site, by protecting
them in their natural habitat. Methods of in-situ conservation include:…

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Botanic gardens ­ these are controlled environments that are used to grow a
variety of rare plants for the following purposes:
In the botanic gardens endangered and even extinct in the wild plants can be
grown and then reintroduced into suitable habitats
Seed banks ­ it…

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It is easier to check on the health on the species and ensure that the
organisms have enough food etc to survive
The individuals can be treated for diseases
Breeding can also be manipulated e.g. through the use of IVF
It can be used to reintroduce a species that left…

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The convention provides governments with guidance on how to conserve

CITIES agreement:

CITIES stands for Convention in International Trade in Endangered Species
This agreement aims to increase the international cooperation in regulating the trade
of wild animal and plant specimens
Member countries of this agreement all made it illegal…


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