BIOLOGY, M2 EQ-Bank 17
The image below shows a dinosaur fossil found in South Africa believed to be 200 million years old.
- What type of diet did this dinosaur likely consume? Explain your answer. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
- Discuss two features that could be observed in the dinosaur’s digestive tract. (3 marks)
--- 5 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 8
A galvanic cell has been set up as illustrated in the diagram below.
- The standard potential for this reaction is 0.78 V. Use half equations to determine the unknown electrode. (2 marks)
--- 4 WORK AREA LINES (style=blank) ---
- The unknown solution is light green in colour. Explain what will happen to the colour of the unknown solution as the reaction proceeds. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
- After some time, a solid deposit formed on the copper electrode was removed and dried. The mass of the deposit was 0.150 g. Determine the final concentration of the copper nitrate solution. (3 marks)
--- 6 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 2 MC
Which of the following relationships is an example of parasitism?
- A cleaner wrasse removing parasites from a larger fish.
- A lichen formed by a fungus and an alga growing together on a rock.
- An orchid growing on the branch of a rainforest tree without harming it.
- A cuckoo laying its eggs in another bird's nest for the host to raise.
BIOLOGY, M4 EQ-Bank 1 MC
Commensalism is a form of symbiotic relationship. Which of the following best describes a commensal relationship between two organisms?
- Both organisms benefit from the interaction.
- One organism benefits while the other is unaffected.
- One organism benefits at the expense of the other.
- Neither organism is affected by the interaction.
BIOLOGY, M4 EQ-Bank 4
Describe the differences between mutualistic and parasitic symbiotic relationships in ecosystems. In your answer, provide one specific example of each type of relationship from nature. (3 marks)
--- 6 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 2
- Is soil pH a biotic or abiotic factor? (1 mark)
--- 1 WORK AREA LINES (style=lined) ---
- Describe how soil pH can affect plant growth. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
- Explain one way in which plants might alter soil pH. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 3 MC
A scientist is using a population growth model to predict the future of a species in a changing environment. Which of the following factors would be LEAST likely to be included in this model?
- Birth rates and death rates of the species.
- Carrying capacity of the habitat.
- Genetic diversity within the population.
- Average daily temperature fluctuations.
BIOLOGY, M4 EQ-Bank 8
Indigenous land management practices are increasingly recognised for their effectiveness in ecosystem restoration.
Describe one specific case study where traditional knowledge has been applied to heal a damaged ecosystem in Australia. In your answer, explain the concept of 'Country' or 'Place' in this context and outline two specific restoration strategies used, highlighting their cultural significance. (5 marks)
--- 10 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 7
Agricultural intensification has led to widespread land degradation in many parts of the world.
Identify two major forms of land degradation resulting from agricultural practices. In your answer, describe a specific restoration technique used to address each form of degradation. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 6
The concept of 'Country' holds deep significance in Aboriginal culture.
Explain the meaning of 'Country' from an Aboriginal perspective and describe a restoration practice that aligns with Aboriginal understanding of Country and could be used in post-mining landscapes. (3 marks)
--- 6 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 5
Mining activities often leave significant impacts on ecosystems. Environmental scientists and ecologists work to develop and implement restoration practices to heal these damaged landscapes.
Describe two specific restoration practices commonly used in post-mining landscapes. In your answer, identify one challenge faced in the restoration process and how it might be overcome. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 4
While models provide valuable insights into potential biodiversity changes, they are not without their shortcomings.
Identify and explain two limitations of models used to predict future impacts on biodiversity. In your answer suggest a way scientists might address or mitigate these limitations. (4 marks)
--- 5 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 20
During a laboratory investigation, a student mixed two solutions and observed a sudden colour change, an increase in temperature, and the formation of bubbles.
- Explain why these observations indicate a chemical change. (3 marks)
--- 6 WORK AREA LINES (style=lined) ---
- Discuss two types of chemical reactions that could cause at least two of these observations each. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 8 MC
A student conducts an experiment by mixing an unknown metal powder with a solution of hydrochloric acid. The following observations are made: rapid bubbling, a slight rise in temperature, and a distinctive metallic odour.
Based on these observations, which of the following best identifies the indicators of a chemical change and explains what might have occurred?
- Formation of a precipitate, indicating the metal is insoluble in acid.
- Production of a gas and increase in temperature, suggesting the metal reacts to release hydrogen gas.
- Emission of light and production of an odor, implying the metal is highly reactive.
- Absorption of heat and production of a gas, indicating an endothermic reaction producing carbon dioxide.
CHEMISTRY, M3 EQ-Bank 6 MC
Which of the following correctly identifies the gas or gases released when hydrochloric acid reacts with magnesium, potassium hydroxide, calcium carbonate, and ammonium carbonate, respectively?
CHEMISTRY, M3 EQ-Bank 18
A student heats sodium metal, copper carbonate and propane gas
Write a balanced chemical equation for each of the reactions that occurred. (3 marks)
--- 5 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 8
Explain how the unique abiotic factors of the Australian continent have influenced the evolution of sclerophyll plants. In your answer, provide two specific adaptations. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 7
Analyse the evidence for the evolution of marsupials in Australia. In your answer, describe one piece of fossil evidence that supports the evolution of marsupials in Australia and provide one limitation of using fossil evidence to reconstruct evolutionary histories. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 5
Scientists analyse the ratio of
- Describe one method used to obtain oxygen isotope data from ancient samples. (1 mark)
--- 1 WORK AREA LINES (style=lined) ---
- Explain how the relationship between
and ratios provides evidence of past changes in ecosystems. (3 marks)
--- 6 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 2
Aboriginal rock paintings provide valuable insights into Australia's past ecosystems and the changes they've undergone over time.
Explain why Aboriginal rock paintings are considered a valid source of ecological information and how it complements other forms of paleontological data in understanding ecosystem changes. (4 marks)
--- 7 WORK AREA LINES (style=lined) ---
BIOLOGY, M4 EQ-Bank 1
Describe two examples of paleontological evidence from Australia that provide insights into past changes in ecosystems. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 9
Researchers have observed significant changes in cane toad populations since their introduction to Australia.
Describe one modern-day adaptation discovered in cane toads how it relates to the process of natural selection. (3 marks)
--- 5 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 8
Absolute dating techniques provide crucial information about the age of fossils and rocks, but different methods are suitable for different time periods.
Describe two absolute dating methods used by scientists, each appropriate for a different time scale. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 6
Paleontologists use various methods to determine the age of fossils, providing crucial information about Earth's history and the evolution of life.
Describe two techniques that can be used to date fossils. In your answer, discuss one advantage and one limitation of each method. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 3
Ginkgo biloba, often called a 'living fossil', is the only surviving species of the division Ginkgophyta. While native to China today, fossils of ginkgo-like plants have been found on every continent except Antarctica.
These fossils date back to the Permian period, over 270 million years ago. Ginkgo fossils have been discovered in locations as diverse as North America, Europe, and Australia.
Explain how this widespread fossil distribution of Ginkgo, compared to its limited native range today, supports the theory of evolution by natural selection. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 4
Comparative embryology provides compelling evidence for Darwin and Wallace's Theory of Evolution by Natural Selection.
Describe two examples of embryological similarities across different species and explain how these examples support the theory of evolution. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 5
On a remote island, a group of flightless birds called the Insulavis live peacefully.
These birds have small, stubby appendages where their wings should be. Despite never using these appendages for flight, every Insulavis is born with them.
Using your understanding of Darwin and Wallace's Theory of Evolution by Natural Selection, explain how the presence of these structures in Insulavis supports the theory of evolution. In your answer, provide a possible evolutionary scenario that could have led to the current state of Insulavis wings. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 5 MC
Which fuel produces the highest number of moles of carbon dioxide for every mole of oxygen consumed during complete combustion?
- Ethane,
- Ethene,
- Methane,
- Butane,
CHEMISTRY, M3 EQ-Bank 16
Describe how activation energy, collision frequency, and molecular orientation work together to determine the rate of a chemical reaction. In your answer, define what each term refers to and relate these factors to collision theory. (5 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 3
"Natural selection is the architect of biodiversity."
Justify this statement. In your answer, describe how natural selection can lead to changes in a population and over time, increased biodiversity. Provide an example from the Australian ecosystems that demonstrates this relationship. (5 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 2
- Define convergent evolution within the context of Darwin and Wallace's Theory of Evolution by Natural Selection. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
- Describe two key principles of natural selection that lead to convergent evolution. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
- Provide two examples of convergent evolution, one involving Australian fauna and one non-Australian, explaining how each demonstrates the process of natural selection. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 1
- Explain the difference between micro-evolution and macro-evolution, highlighting their key characteristics and relationship. (2 marks)
--- 5 WORK AREA LINES (style=lined) ---
- Provide an example of how microevolutionary changes can accumulate to drive larger evolutionary changes and potentially lead to speciation. (2 marks)
--- 5 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 6
Many plants in hot climates exhibit leaf droop, where their leaves hang downwards during the hottest parts of the day.
- Describe this type of adaptation. (1 mark)
--- 1 WORK AREA LINES (style=lined) ---
- Provide two reasons why this adaptation might be beneficial for plants in these environments. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 3 MC
Consider the following adaptations in Australian organisms:
The ability of koalas to detoxify eucalyptus leaves. | ||
The migration of bogong moths to alpine areas in summer. | ||
The spines on an echidna. | ||
The camouflage patterns on a leaf-tailed gecko. |
Which combination correctly identifies one of each type of adaptation (structural, physiological, and behavioural)?
and and and and
CHEMISTRY, M3 EQ-Bank 8 MC
Which statement best explains how molecular orientation affects the rate of a chemical reaction according to collision theory?
- Reactant molecules must collide with enough energy, but the orientation of the molecules is irrelevant.
- Correct orientation only affects reactions that involve more than two reactant molecules.
- Incorrect molecular orientation increases the activation energy required for the reaction to proceed.
- Even with sufficient energy, reactants must collide in the correct orientation to allow bonds to break and form.
CHEMISTRY, M3 EQ-Bank 14
A student conducted an experiment to investigate how the concentration of hydrochloric acid affects the rate of its reaction with magnesium ribbon. They measured the volume of hydrogen gas produced at regular intervals in reactions using 1.0 M, 2.0 M, and 3.0 M hydrochloric acid, keeping other variables constant.
- Explain how the concentration of hydrochloric acid influences the rate of reaction with magnesium, using collision theory. (2 marks)
--- 4 WORK AREA LINES (style=blank) ---
- Describe how the student could modify the experiment to investigate the effect of temperature on the reaction rate. (2 marks)
--- 4 WORK AREA LINES (style=blank) ---
- Identify and explain one advantage of a student using digital technologies such as a gas pressure sensor to collect or analyse data from the experiment. (2 marks)
--- 4 WORK AREA LINES (style=blank) ---
CHEMISTRY, M3 EQ-Bank 13
A certain chemical reaction begins with a high reaction rate but over time this rate of reaction slows until the reaction is complete.
Explain this statement using collision theory. (3 marks)
--- 4 WORK AREA LINES (style=blank) ---
BIOLOGY, M3 EQ-Bank 6
"The prickly pear cactus, introduced to Australia in the 1800s, became a significant ecological problem before being brought under control."
Describe two significant changes to the ecosystem caused by the prickly pear invasion and the control method used to manage its population. In your answer, discuss the effectiveness of this control measure and its ecological implications. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M3 EQ-Bank 1
Describe two biotic factors that could act as selection pressures in a grassland ecosystem.
For each factor, briefly explain how it might influence the organisms living in that environment. (4 marks)
--- 5 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 3 MC
When molecules react, the final rate of a chemical reaction is determined by which of the following factors?
- The proportion of collisions where the number of molecules are keep the same.
- The proportion of collisions where molecules have the correct orientation
- The proportion of collisions where atoms are destroyed
- The proportion of collisions where molecules form larger structures
CHEMISTRY, M3 EQ-Bank 10
A student conducted a series of investigations where 8.50 g of sodium carbonate was reacted with excess nitric acid
Both reactions produced 1.988 L of
- Explain why experiment B had a faster rate of reaction than experiment A. (1 mark)
--- 2 WORK AREA LINES (style=blank) ---
- Using the volume of
produced, calculate the maximum mass of carbon dioxide produced in the reaction. (3 marks)
--- 2 WORK AREA LINES (style=blank) ---
- Explain why both experiments produced in the same volume of carbon dioxide. (1 mark)
--- 2 WORK AREA LINES (style=blank) ---
Functions, EXT1 F1 EQ-Bank 4
Let
- State the domain of
. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
- What is the equation of
? (3 marks)
--- 5 WORK AREA LINES (style=lined) ---
- For the restricted domain, sketch the function and the inverse function on the same number plane below.
- Clearly identify all axis intercepts. (2 marks)
--- 0 WORK AREA LINES (style=blank) ---
Calculus, EXT1 C1 EQ-Bank 5 MC
Simplify
BIOLOGY, M2 EQ-Bank 6
Describe the pulmonary circuit and the changes in blood composition as it circulates through this system. (4 marks)
--- 6 WORK AREA LINES (style=lined) ---
BIOLOGY, M2 EQ-Bank 5
Compare and contrast the structure of red blood cells (erythrocytes) and platelets (thrombocytes), explaining how their unique features contribute to their efficiency in performing their respective functions in the circulatory system. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M2 EQ-Bank 3
The diagram below shows features that are observed in cross-sections of three types of blood vessel.
- Complete the diagram by identifying the type of blood vessel identified by
and . (2 marks) --- 2 WORK AREA LINES (style=lined) ---
- Describe how the structural features of
contribute to its role in the circulatory system. (2 marks) --- 5 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 28v4
A student stirs 2.50 g of silver (I) nitrate powder into 100.0 mL of 1.50 mol L
- Write a balanced chemical equation for the reaction. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
- Calculate the theoretical mass of precipitate that will be formed. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
The student weighed a piece of filter paper, filtered out the precipitate and dried it thoroughly in an incubator. The final precipitate mass was higher than predicted in (b). - Identify one scientific reason why the precipitate mass was too high and suggest an improvement to the experimental method which would eliminate this error. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
CHEMISTRY, M3 EQ-Bank 28v2
A student stirs 3.50 g of copper (II) nitrate powder into 150.0 mL of 1.50 mol L
- Write a balanced chemical equation for the reaction. (1 mark)
--- 2 WORK AREA LINES (style=lined) ---
- Calculate the theoretical mass of precipitate that will be formed. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
The student weighed a piece of filter paper, filtered out the precipitate and dried it thoroughly in an incubator. The final precipitate mass was higher than predicted in (b). - Identify one scientific reason why the precipitate mass was too high and suggest an improvement to the experimental method which would eliminate this error. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
CHEMISTRY, M4 EQ-Bank 5
BIOLOGY, M2 EQ-Bank 2
Describe the nature and significance of plasma in the circulatory system. In your answer, include two crucial functions that plasma performs in the body and how a deficiency or imbalance in plasma components might affect overall health. (4 marks)
--- 7 WORK AREA LINES (style=lined) ---
BIOLOGY, M2 EQ-Bank 1 MC
Which of the following is a characteristic of an open circulatory system?
- Blood is always contained within blood vessels.
- It is typically found in larger, more complex animals.
- Hemolymph bathes organs directly in body cavities.
- It allows for rapid, high-pressure blood flow.
BIOLOGY, M2 EQ-Bank 10 MC
Which of the following statements about phloem transport in plants is correct?
- Sap in the phloem always moves from areas of high sugar concentration to areas of low sugar concentration.
- The direction of sap movement in the phloem is solely determined by gravity.
- Moving sap through the phloem requires energy input and can occur both up and down the plant.
- The rate of sap movement in the phloem is constant throughout the day and night.
BIOLOGY, M2 EQ-Bank 8
The transpiration-cohesion-tension theory provides an explanation for water movement in tall trees.
Describe this theory, including the role of transpiration in this process. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M2 EQ-Bank 6
Compare and contrast the microscopic structures involved in gas exchange in mammals and plants.
In your answer, describe one structural similarity between these structures that aids in gas exchange and explain one key difference in how these structures function. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
CHEMISTRY, M4 EQ-Bank 7 MC
The chemical equation for the decomposition of calcium carbonate is shown below
Which of the following best describes the type of reaction given that the bond energy of the reactant is greater than the bond energy of the products.
- An exothermic reaction because energy is absorbed
- An exothermic reaction because energy is released
- An endothermic reaction because energy is absorbed
- An endothermic reaction because energy is released
BIOLOGY, M2 EQ-Bank 7 MC
Consider the following statements about alveoli in mammals and the internal structure of plant leaves:
Both structures have a thin, moist surface to facilitate gas exchange. | ||
Alveoli exchange gases with blood, while leaves exchange gases with air spaces. | ||
Alveoli are specialised for both oxygen uptake and carbon dioxide release, while leaves are specialised only for oxygen release. |
||
Both structures are kept moist to facilitate the diffusion of gases. |
Which combination of statements is correct?
and only and only , and only and only
BIOLOGY, M2 EQ-Bank 5
Explain how the respiratory structures of a terrestrial mammal and a bony fish are adapted to their respective environments.
In your answer, discuss how the structure of each system maximises gas exchange. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
BIOLOGY, M2 EQ-Bank 2
Discuss one similarity and one difference between using transmission electron microscopy (TEM) versus scanning electron microscopy (SEM) in the study of plant structures. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
BIOLOGY, M2 EQ-Bank 10
"The circulatory and excretory systems in humans are intricately linked, each depending on the other for optimal function."
- Describe two ways in which the circulatory system and the excretory system of humans exhibit interdependence. (2 marks)
--- 5 WORK AREA LINES (style=lined) ---
- Provide one example of a disorder that could affect both systems. (2 marks)
--- 5 WORK AREA LINES (style=lined) ---
- « Previous Page
- 1
- …
- 5
- 6
- 7
- 8
- 9
- …
- 64
- Next Page »