Biodiversity

Question 1

Biodiversity refers to the variety of life on earth

How many categories can we classify biodiversity?
Name those categories

(GES)

Answer 1

3 types

• genetic biodiversity
• Ecosystem biodiversity
• species biodiversity

Question 2

Complete the extract below about genetic diversity.

Genetic diversity refer to the ____________ within the _______ species . No two individuals of the ______ species are_______.

Difference in gene is due to individual __________ and _________ to different environments. This promotes the ability of species to ___________ to the environment

Answer 2

variation of genes
same species
same
identical

individual isolation
adaptation to different environment
adapt

Question 3

What are the examples of genetic diversity?

Answer 3

• Paddy plant

- banana plants that have the ability to grow in different regions

Question 4

Complete the extract below about the ecosystem diversity.

Ecosystem diversity refers to the _______ and ______ process in the ecosystems on the land, sea and other aquatic environments.

Example of ecosystem diversity are:
There are many _______ that can be found in the _______ or dessert .

Answer 4

biotic
ecological

ecosystems
ocean

Question 5

Complete the extract below about the species diversity.

Species diversity refers to the _______ of ___________ in an ___________. Species diversity includes the __________ of a species in a _________( species richness) and the ____________ in a community.

This promotes the ___________ and stability of the community

Answer 5

variation 
different species 
area 
total number 
community 
species distribution 

biotic interaction

Question 6

State an example of species diversity.

Answer 6

• Tropical rainforest

Question 7

What is phylogeny?

Answer 7

• Means the evolutionary history of a species or a group of organism that are genetically linked

Question 8

Phylogenetic classification is the classification system that shows the ____________ relationship and the __________ of the studied organism. Phylogenetic classification can be classified into _____________ and ______________

Answer 8

Evolutionary
history
phylogenetic tree
homologous structure

Question 9

What is the difference between phylogenetic tree and homologous structure?

Answer 9

Phylogenetic tree shows the species of organisms diverge from the same ancestor

Homologous structure refers to the anatomy or body parts that can be observed across multiple organisms

Question 10

Evidence suggest that land plants evolved from green algae. First land platns originated from non-vascular plants such as mosses followed by seedless vascular plants such as ferns.

Vascular plants then evolve to gymnosperms and angiosperms. What are the differences?

Answer 10

Gymnosperms- has no flowers, does not produce fruit and seeds, only produce cone

Angiosperm- has flowers and fruits

Question 11

Why is biodiversity important for humans and the environment?

Answer 11

• important source of food
• maintain food chain
• prevent extinction of species

Question 12

What are the differences between in situ conservation and ex situ conservation in Malaysia?

Answer 12

In situ conservation- it maintains species in their natural habitat ( National Park, permanent forest reserve)

Ex Situ- conserve species found outside of their natural habitats ( zoo, botanical garden)