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HSC Agriculture Multiple Choice (3) Flashcards | StudBud
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HSC Agriculture Multiple Choice (3)
HSC Agriculture Multiple Choice (3)
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a multiple choice style quiz to help prepare for #NSW#HSC#Agriculture
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
What is the likely consequence for animals under conditions of sustained high temperatures?
Reduced fertility in male animals
Increased birth weights of offspring
Increased ovulation rates in female animals
Early onset of puberty
2
Which of the following is NOT an indicator of water quality?
Temperature
pH
Turbidity
Dissolved oxygen level
3
Which of the following best describes an effect that fertilisers can have on water quality?
Row A
Row B
Row C
Row D
4
A digestive tract is shown. Identify the type of digestive system and organ (M)?
Ruminant system; M= Duodenum
Monogastric system; M= Caecum
Monogastric system; M= Crop
Ruminant system; M= Omasum
5
The disease triangle shows the 3 factors needed for disease development. Label (ii) and (iii)
ii) Environment iii) Time
ii) Pathogen iii) Environment
ii) Environment iii) Vector
ii) Pathogen iii) Time
6
A legume has lumps on its roots. What's the effect of these lumps on the growth of the plant?
Decreased growth due to a blockage of the root xylem vessels
Increased growth because of increased water uptake
Decreased growth because of the presence of a disease
Increased growth due to an increase in available nutrients
7
Which graph most accurately shows a demand curve for an agricultural product?
Graph D
Graph C
Graph A
Graph B
8
What is the component of experimental design that involves the management of variables?
Randomisation
Control
Replication
Standardisation
9
The following procedure was undertaken on a dry soil sample. What is being measured?
Texture
Organic matter content
Bulk density
Net Assimilation Rate (NAR)
10
Which is NOT an example of overcoming an environmental constraint in plant production?
Growing crops in a glasshouse
Applying hormones to plant cuttings to promote root growth
Adding lime to acidic soils
Covering fruit trees with bird netting
11
The diagram shows part of the nitrogen cycle. Which arrow represents the nitrification process?
W
Y
Z
X
12
A producer has to treat his bulls for lice. How much chemical is required for the whole mob?
585mL
780mL
1170mL
450mL
13
The table shows the weights of a group of lambs. What is the mean weight?
18
17
16
19
14
Improved pastures are characterised as:
Pastures consisting of native and introduced species
Introduced varieties with high production, and palatability
Introduced varieties with low digestibility & palatability
Species indigenous to Australia, highly adapted to climate
15
Net assimilation rate (NAR) is determined by calculating the balance between:
Photosynthesis and respiration.
Respiration and transpiration.
Photosynthesis and germination.
Respiration and germination.
16
What system of plant breeding is shown in the diagram?
Hybridisation
Line breeding
Genetic engineering
Selective breeding
17
Which of the following is a feature of a soil with a high bulk density?
Closely packed soil particles
High levels of organic matter
Low mechanical strength
High level of porosity
18
What is the hormone that promotes development of the lining of the uterus in mammals?
Follicle stimulating hormone
Oxytocin
Oestrogen
Luteinising hormone
19
What should be subtracted from total enterprise income to calculate a gross margin?
Variable costs
Fixed equity
Fixed costs
Variable equity
20
Which of the following best describes the plant breeding technique known as selective breeding?
Crossing 2 existing plant varieties to produce a new variety
Choosing seeds from genetically superior plants to reproduce
Crossing two different plant species to produce a new plant
Transferring a gene into a plant using laboratory techniques
21
The long-term fertility of sandy soils is best maintained by:
Applying gypsum
Applying a chemical fertiliser
Conserving organic matter (soil carbon)
Regularly using the land to grow organic crops
22
What is the function of the hormone progesterone in female animals?
It stimulates the development of follicles in the ovary
It maintains pregnancy
It causes milk ‘let down’ following birth
It causes contraction of the uterus at the time of birth
23
Supply and demand curves are shown. What's the outcome of the shift from Supply 1 to Supply 2?
There would be a decrease in price for the product
There would be an increase in price for the product
The price for the product would remain unchanged
Supply, quantity and price would increase for the product
24
What is the most effective way of managing riparian zones in order to improve water quality?
Constructing dams
Clearing all vegetation
Fencing to exclude livestock
Applying fertiliser
25
Which of the following is an example of a behavioural characteristic of an animal?
Fertility
Temperament
Liveweight
Body temperature
26
An extract from a 100 steer feedlot enterprise is shown. Calculate the gross margin/steer.
$710
$200
$250
$760
27
Dry matter yield was measured comparing 3 fertiliser types. What's the most suitable graph type
Graph A
Graph C
Graph D
Graph B
28
Here are EBV's for four sires. Which bull should join heifers to supply steers to a feedlot?
Sire Y
Sire X
Sire Z
Sire W
29
What is being determined by the test shown in the diagrams?
Texture
Structure
Porosity
Bulk density
30
Which characteristic of a soil would give the best indication of its chemical fertility?
The proportions of sand, silt and clay
Ion exchange capacity
The arrangement of soil particles
Acidity
31
A company’s website describes its operations as shown. What is the companies marketing strategy
Cooperative
Direct marketing
Vertical integration
Marketing board
32
Which of the following soil textural classes would have the highest ion exchange capacity?
Sandy loam
Sand
Clay loam
Loam
33
Which graph shows the correct order of development of tissues during an animal’s life?
Graph B
Graph D
Graph A
Graph C
34
What is the land use practice commonly used by the Aboriginal inhabitants of Australia?
Firestick farming
Conservation tillage
Subsistence farming
Minimum tillage
35
Heterosis or hybrid vigour is observed when
Progeny from a crossbreeding program outperform parents
Progeny have identical type & production levels as parents
An organisms genetic material has been manipulated
Production data is measured and recorded for breeding use
36
Which of the following is an example of a value-added product?
Eggs
Raw milk
Diced beef
Wine grapes
37
Which row in the table correctly describes microbes involved in ruminant digestion?
Row A
Row C
Row B
Row D
38
What is the name of the bacteria responsible for nodule formation on legumes?
Reticulum
Ribosomes
Rhizomes
Rhizobium
39
Which best describes the purpose of animal welfare legislation in animal production systems?
To promote the wellbeing of animals & prevent animal cruelty
To eliminate all sources of pain and suffering for animals
To prevent animal rights activists from interfering on farms
To ensure that farm animals have adequate food
40
Which if the following is not a soil degredation issue?
Soil erosion
Soil carbon sequestraion
Soil acidity
Soil salinity
