Biodiversity
(Ch 9.2)
Complete the following questions based on this week’s face-to-face class discussion. Refer to the
powerpoint slides viewed in today’s class and chapter 9.2 of your textbook (pages 365 - 367) to help
you answer the questions.
NOTE: These questions are in sections that are colour coded. You MUST complete ALL ‘Standard’
questions, and also your choice of ‘Support’ or ‘Extend’.
Support my Learning Vocabulary
Standard (ALL STUDENTS
Various short answer questions
COMPLETE)
Extend my Learning Analysis questions
Support my Learning
Fill in the blanks with the correct word from the list below:
Biodiversity Species diversity Genetic diversity
Cultural value Greenhouse effect
1. Compassion refers to the natural variation of traits within a species.
2. Kangaroos, emus, kiwis and golden wattle are all species that have Species
diversity.
3. Rainforests and other areas with a large number of plants are vital because they
reduce the Greenhouse effect and produce oxygen for us to breathe.
4. Genetic diversity is the variety of life within ecosystems on Earth.
5. Cultural value is the quality humans have where we feel sympathy for other
organisms.
6. Biodiversity refers to the number of species within an ecosystem.
Standard (ALL STUDENTS COMPLETE)
Answer the following questions below:
1. List the four reasons why humans should protect ecosystems.
Because the ecosystems tree produce oxygen, animal, fruit, trees.
2. Photosynthesis is the process by which producers convert energy from the Sun into
chemical energy in the form of glucose. Explain why photosynthesis is so important for
ecosystems.
Plants are autotrophs, which means they produce their own food. They
use the process of photosynthesis to transform water, sunlight, and
carbon dioxide into oxygen, and simple sugars that the plant uses as
fuel.
3. Biodiversity is key for the stability of ecosystems. Explain why biodiversity is so important
in an ecosystem.
Biodiversity is essential for the processes that support all life on Earth,
including humans.
4. There is a relationship between the number of prey organisms and the number of predator
organisms in an ecosystem. Identify this relationship and explain how it occurs.
As the prey population increases, there is more food for predators. So,
after a slight lag, the predator population increases as well.
Extend my Learning
1. Looking at the food web above, if there was an increase in the amount of wattle
present, discuss what you think would happen to each of the following populations.
a. Leafhoppers
b. Wasps
c. Honeyeaters
d. Beetles
a. There will be a lot of problem on the land and their will be a lot of predator hunting the
leafhopper.
b. There will be a lot of casualties and their would a lot of death because of how many wasps
are their and it will cause a lot of problems.
e. The population of the bug will decrease how the amount of Honeyeaters There is
and the bug population would have problems and it will be bad for the bug and
human because we sometimes use bug for some of the thing we do.
c. Nothing would happen but there will be a lot of predators hunting the bug.
2. Coral is a keystone species for the Great Barrier Reef. Many organisms and
ecosystems in the reef rely on coral for a variety of reasons. Ocean acidification
bleaches coral and kills coral. Explain the impact this would have on the
biodiversity of the ecosystems within the Great Barrier Reef.
There will be a lot of animal death which they wouldn’t have any shelter in which the shark or other
sea animal would hunt and kill the fishes and it would be bad and it would end badly.
Natural & Human Impact
(Ch 9.3)
Complete the following questions based on this week’s face-to-face class discussion. Refer to the
powerpoint slides viewed in today’s class and chapter 9.3 of your textbook (pages 375 - 382) to help
you answer the questions.
NOTE: These questions are in sections that are colour coded. You MUST complete ALL ‘Standard’
questions, and also your choice of ‘Support’ or ‘Extend’.
Support my Learning Vocabulary
Standard (ALL STUDENTS
Various short answer questions
COMPLETE)
Extend my Learning Data analysis questions
Support my Learning
Fill in the blanks with the correct word from the list below:
Introduced species Global warming Abiotic
Chemical pollution Natural event Lignotubers
1. Global warming factors such as changes in rainfall, temperature and the amount of
available light can affect the organisms of a community.
2. Bushfires, floods and drought are all examples of a Natural event.
3. The eucalypt species called the malles have Lignotubers which are swollen stems
under the ground.
4. Donkeys, agapanthus, camels, lantana, rats and goats are all Introduced species to
Australia.
5. When chemicals escape into the environment and damage ecosystems it causes
Chemical pollution
6. Increased production of carbon dioxide from human activities is thought to be
contributing to Abiotic, but natural factors are also involved.
Standard (ALL STUDENTS COMPLETE)
Answer the following questions below:
1. List the major ways in which humans are damaging the environment:
Putting their rubbish on grass, trees , sea and anywhere.
2. Floods can devastate an ecosystem, however they can also have a positive impact. Please
explain the positive impacts major floods can have on the ecosystem.
It would give food to the tree and make the ground get some nutrients.
3. How do seasonal changes in temperature, water availability and sunlight affect
ecosystems?
Where the sun is at and where the cloud are on the Pacific place which the seasonal changes or
how the time passes which it will impact the water temperature and many more.
4. Propose 5 ways that humans can help minimise the negative effects both natural events
and human impact can have on ecosystems.
1. By butting purring water on the tree which it will decrease of it getting in fire.
2. By cleaning the and getting the rubbish out of the ground
3.by helping the animals
4. By preventing the event to accord.
5.by using Ai to aware advantage to know how to help the earth.
Extend my Learning
1. Explain 3 ways that firestick farming improved the food supply of Aboriginal people
(any of the below 4 responses)
1. The first, to encourage native grasses to regenerate and produce
new feed.
2. the second to reduce scrub and fuel to prevent intense bushfires
3. thirdly to promote biodiversity,” Bill said.
2. Imagine a disease came along that wiped out many termites. What effects do you
think this may have on ecosystems
I think some of the animal that hunt for termites would get instinct and some animal would go for
other animal or bugs because it will impact a lot of animal and lands.
Questions 3 & 4 are based on the following information.
Interactions between two species of clover (an animal feed) were studied. The two
clover species were Yarloop and Tallarook. Seeds of each species were sown in
separate trays to see how each species grew on its own. Both species were then
grown together in the same seed trays. A few plants were removed every 10 days to
measure their growth. The plants were dried out and weighed (dry weight). The
average height of the plants when grown on their own was 10cm for Yarloop and
5cam for Tallarook. The results are shown in the graphs below. Emergence means
when the germinating plants first appeared above the ground.
3.Considering graph 1 above and the height data, what can you conclude about these
two species of clover when they were grown separately (on their own)?
a. Both species grew because the dry weight increased with time
b. Tallarook grew taller than Yarloop
c. The soil did not suit Tallarook as much as it did Yarloop
d. Yarloop naturally grows into a heavier, taller plant than Yarloop
Answer:
4. What is the most likely explanation for the results shown in graph 2, when both
species were grown together?
a. Tallarook did not grow very well because it’s dry weight hardly increased with time
b. Yarloop liked the soil much better than did Tallarook
c. Yarloop competes better than Tallarook because it captures more sunlight
d. Yarloop grew faster because it was in the shade
Answer:
