Which statement relates a chem characteristic of soil to an effect that increases plant growth?

Soil particles with high CEC hold large amounts of cations.

What is a common commercial use of the plant hormone group auxins?

To promote root growth in cuttings

Which of the following statements is true of European management practices in Australia?

They led to an increase in soil degradation issues.

Which of the following statements is NOT true of embryo transfer in animals?

Higher preg. rates are achieved compared to natural mating

Increasing quantity & quality of food to females prior to joining /mating with males is

To increase the rate of ovulation in their breeding stock

What does net assimilation rate (NAR) measure?

Dry matter production of a plant

graph shows price of an ag. commodity fluctuation. Whats the most likely cause of price change

Unseasonal weather conditions in a major production area

What is ONE disadvantage associated with artificial insemination in livestock breeding?

It may lead to an increase in inbreeding

What does net assimilation rate (NAR) measure?

Dry matter production of a plant

A government charge on the amount of irrigation water used will have an effect on

the production of plants and animals

What is not true for artificial insemination in livestock breeding?

It may lead to an increase in sexually transmitted diseases.

number of family farms in Australia has declined over 100 yrs. What's the consequence of this

Reduced population in small rural towns

A student conducting an experiment wants to improve result reliability. How can they do this?

increase the number of replicates

What is the role of standardisation in experimental design?

managefactors to ensure outside factors don't affect results

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12 Ag quiz 2

75 termsStudBud Administration130 plays

Papers 2012-2014

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Questions 75

Answers

1
Which type of plant hormone increases the ripening rate of fruits?
Ethylene
Cytokinin
Gibberellin
Auxin
2
Which statement relates a chem characteristic of soil to an effect that increases plant growth?
A low bulk density value raises the porosity of the soil.
Extreme pH values make all plant nutrients more available.
Soil particles with a net positive charge attract cations.
Soil particles with high CEC hold large amounts of cations.
3
What group of chemicals is responsible for the regulation of animal reproductive systems?
Hormones
Enzymes
Regulators
Promotants
4
What is a common commercial use of the plant hormone group auxins?
To promote root growth in cuttings
To ripen fruit for market
To thin fruit in orchards
To defoliate cotton crops
5
Which type of plant hormone increases the ripening rate of fruits?
Auxin
Cytokinin
Ethylene
Gibberellin
6
Predatory mites may be used to assist control red spider mite. What type of control is this?
Chemical
Biological
Cultural
Genetic
7
Which financial mgt. technique provides comparison of profitability of enterprises on a farm?
A gross margin budget
A whole farm budget
A farm development budget
A return to capital statement
8
Which of the following statements is true of European management practices in Australia?
They did not involve the burning of plant material
They did not affect natural waterways
encouraged establishment of diverse range of native species
They led to an increase in soil degradation issues.
9
What are the two major reactants (inputs) in photosynthesis?
light & oxygen
water & carbon dioxide
water & light
oxygen & carbon dioxide
10
Which of the following is most useful to farmers to analyse the financial situation of a farm?
Gross production
Supply trends
Whole-farm planning
Gross margin
11
Which of the following statements is NOT true of embryo transfer in animals?
Embryos can be frozen and stored for use at a later time.
Higher preg. rates are achieved compared to natural mating
can sex Embryos so farmer can choose gender of offspring
Can split Embryos so 2 or more identical embryos produced
12
Which is most useful to farmers when analysing the financial situation of a farm?
Supply trends
Gross production
Whole-farm planning
Gross margin
13
The graph shows the supply (S) and consumer demand (D) curves for a farm product.
W
Y
X
Z
14
At which point in marketing chain would product promotion likely increase total product sales?
Transport
Processing
Production
Wholesaling
15
Increasing quantity & quality of food to females prior to joining /mating with males is
To increase milk production during lactation
To increase the chance of survival of any offspring
To increase the rate of ovulation in their breeding stock
To increase the length of the oestrus cycle
16
What does net assimilation rate (NAR) measure?
Photosynthesis
Dry matter production of a plant
Nutrient uptake of a plant
Cellular respiration
17
Which of the following is responsible for ovulation?
Oestrogen
Progesterone
Luteinising hormone
Prostaglandin
18
graph shows price of an ag. commodity fluctuation. Whats the most likely cause of price change
Importing more of the commodity
A significant reduction in consumer demand for the commodity
Unseasonal weather conditions in a major production area
Normal seasonal variation in the availability of commodity
19
Predatory mites are used to control of red spider mite. What's this type of pest control
Genetic
Chemical
Cultural
Biological
20
What is the main role of carbohydrates in the diet of an animal?
they provide nutrition to grow muscle
the dehydrate the animal
they provide energy
they decrease fat storage
21
What is ONE disadvantage associated with artificial insemination in livestock breeding?
It may lead to an increase in sexually transmitted diseases
It may lead to an increase in inbreeding
may reduce the range of male genotypes available to a farmer
reduce # of offspring sired by genetically superior animals
22
The fate of energy in the diet of an animal can be shown as follows:
x-Digestible; Y-Total
X- Net; Y-Total
X-Digestible; Y-Net
X-Total; Y-Digestible
23
Which of the following is an example of value adding?
Selling wheat through a growers cooperative
Selling pigs directly to a supermarket chain
Selling beef cattle through an internet auction
Selling wine made on a farm
24
What does net assimilation rate (NAR) measure?
Nutrient uptake of a plant
Dry matter production of a plant
Photosynthesis
Cellular respiration
25
Ruminants can achieve high growth on a low quality protein diet because The rumen microbes:
synthesise amino acids.
synthesise volatile fatty acids.
digest cellulose
produce B group vitamins
26
What term describes the time between consecutive ovulations in a breeding female animal?
Oestrous cycle
Standing heat
Gestation period
Breeding cycle
27
What is the name of the hormone that is responsible for maintaining pregnancy?
Prostaglandin
Progesterone
Oestrogen
Oxytocin
28
Which factor is least important when monitoring a growing crop of corn?
pest damage
quantity of irrigation
corn cob development
mature plant height
29
A government charge on the amount of irrigation water used will have an effect on
the production of plants and animals
interest rates on farm loans
the marketing of farm products.
farm safety.
30
term used to describe the time between consecutive ovulations in a breeding female animal?
Oestrous cycle
Gestation period
Breeding cycle
Standing heat
31
What is not true for artificial insemination in livestock breeding?
may reduce number of offsprings sired by superior animals.
It may lead to an increase in inbreeding.
may reduce the range of male genotypes available to farmer.
It may lead to an increase in sexually transmitted diseases.
32
Which of the following is an example of a behavioural characteristic of an animal?
Liveweight
Temperament
Body temperature
Fertility
33
Which of the following is a direct product of photosynthesis?
Glucose
Glycogen
Starch
Carbon dioxide
34
What is the name of the hormone that is responsible for maintaining pregnancy?
Progesterone
Oestrogen
Oxytocin
Prostaglandin
35
number of family farms in Australia has declined over 100 yrs. What's the consequence of this
Reduced total agricultural output
Increased food prices in Australia
Reduced population in small rural towns
Less variety in ag commodities produced in Australia
36
What group of chemicals is responsible for the regulation of animal reproductive systems?
Regulators
Promotants
Hormones
Enzymes
37
A procedure used in cattle production is shown in the diagram.
Embryo transfer
Artificial insemination
Pregnancy testing
Oestrus synchronisation
38
Which group of chemicals regulates animal reproduction and behaviour?
Enzymes
Hormones
Amino acids
Steroids
39
A student conducting an experiment wants to improve result reliability. How can they do this?
randomly assign plots
include a control in the experiment
increase the number of replicates
test more variables
40
What is the growth stage where plants mostly produce leaves?
vegatative stge
emergence stage
reproductive stage
crop stage
41
What is increased as a result of the use of hormone growth promotants (HGPs) in animals?
Age of maturity
Fat content of the carcase
Fertility
Efficiency of food conversion
42
Which term is used to describe the arrangement of particles in soil?
Texture
Structure
Bulk density
Porosity
43
The fate of energy in the diet of an animal can be shown as follows: What are X and Y?
X- Total ;Y- Digestible
X- Digestible ;Y- Total
X- net; Y-Total
X- Digestible ;Y- Net
44
What name is given to the spherical swellings on the roots of a legume?
Root hairs
Guard cells
Nodules
Rhizomes
45
What is the role of standardisation in experimental design?
To reduce the effects of biological variability
To reduce the effects of bias by the experimenter
managefactors to ensure outside factors don't affect results
To provide a basis for comparison between experiments
46
Which shows the correct relationship b/n plant density and dry matter yield/plant?
Graph B
Graph A
Graph C
Graph D
47
At which point in a marketing chain would product promotion be likely to increase total sales?
Production
Wholesaling
Processing
Transport
48
Which grazing management system systematically moves animals from one pasture to another?
open grazing
strip grazing
cell grazing
zero grazing
49
Which of the following is a feature of a soil with a high bulk density?
High levels of organic matter
Closely packed soil particles
Low mechanical strength
High level of porosity
50
which stomach compartment of the ruminant removes water from the food?
rumen
small intestine
omasum
gizzard
51
Which characteristic of a soil would give the best indication of its chemical fertility?
The arrangement of soil particles
The proportions of sand, silt and clay
Ion exchange capacity(
Acidity
52
An animal’s production data is used for stock selection for breeding. This is?
Show judging
Objective measurement
Subjective measurement
Progeny testing
53
Name of marketing type where 1 owner involved in different parts of the supply chain of product
Contract selling
Saleyard selling
Vertical integration
Wholesale marketing
54
The table shows the weights of four different groups of lambs
B
C
A
D
55
Which pair of nitrogen-containing substances can plant roots extract from the soil?
Ammonia and nitrate
Ammonia and nitrite
Ammonium and nitrate
Ammonium and nitrite
56
What is the best method of preventing the development of resistance in pest populations?
Implementing range of chem. & nonchem. pest mgt. strategies
Replacing synthetic pesticides with organic ones
Using a different brand of the chemical each season
Repeated use of a synthetically manufactured pesticide
57
Which is NOT a method used by governments to influence production of marketing of ag products?
codes of practice
legislation
value adding
tax incentives
58
breeding system which modifies organism by inserting a single gene into its cells?
Selective breeding
Hybridisation
Line breeding
Genetic engineering
59
What is the role of Rhizobium bacteria found in root nodules on legume plants?
They provide resistance to plant pathogens
They provide energy for root growth.
They assist in absorbing water and plant nutrients
provide an available source of nitrogen to the plant
60
What is a major diff. b/n digestive processes in ruminant & monogastric animals?
Ruminant animals are able to synthesise some B group vits
Monogastric animals do not require roughage in their diet.
Ruminant able toconvert some amino acids to other amino acid
Monogastric animals use own enzymes in process of digestion
61
Whats the breeding system which modifies a organism by inserting a single gene into its cells?
Selective breeding
Hybridisation
Genetic engineering
Line breeding
62
How do Aust native pasture species typically differ from introduced pasture species?
grow actively for longer periods during the year.
generally less susceptible to heavy grazing by livestock
typically more tolerant of hot and dry conditions
mostly more productive in highly fertile soils.
63
The graph shows how price of an agricultural commodity has fluctuated over a five-year period.
Unseasonal weather conditions in a major production area
Normal seasonal variation in availability of the commodity
A significant reduction in consumer demand for the commodity
Importing more of the commodity
64
The diagram shows the early stages of the growth of a plant. which plant group is it?
Dicotyledons
Monocotyledons
Grasses
Monogastrics
65
What is the purpose of welfare legislation and industry codes of practice in animal management?
To reduce unnecessary pain and suffering
To ensure that the latest technologies are being used
allow farm managers to monitor performance of employees
To improve the quantity of animal products
66
Which combination of factors is most likely to affect the fertility of farm animals?
Daylength, topography, diseases
Light intensity, genetics, topography
Nutrition, daylength, light intensity
Nutrition, genetics, diseases
67
Which of the following describes ONLY physical characteristics of a soil?
Porosity, structure, nitrogen status
Ion exchange capacity, carbon status, nitrogen status
Ion exchange capacity, structure, texture
Porosity, structure, texture
68
What name is given to organisms which cause disease?
Predators
Hosts(
Pathogens
Vectors
69
What is the best description of integrated pest management (IPM)?
Breeding plants or animals which are pest resistant
Choosing most appropriate control strategies from a range
Alternating the chemicals used in a pest control program
Encouraging/introducing natural enemies of a pest to control
70
In a research paper, whats the main reason for including details on the research methodology?
allows readers to evaluate validity of research methodology
Readers can interpret the results of the research.
allows readers to make opinions about how results analysed
The researcher can patent the research methodology
71
The diagram shows the early stages of the growth of a plant.
Monocotyledons
Dicotyledons
Grasses
Monogastrics
72
Which of the following is a direct product of photosynthesis?
Glucose
Starch
Carbon dioxide
Glycogen
73
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 contraction of the uterus at the time of birth
It causes milk ‘let down’ following birth
74
Which statement correctly relates a chem characteristic of soil that increases plant growth?
Soil particles with high CECrelease large numbers of cations
Soil particles with a net positive charge attract cations.
Extreme pH values make all plant nutrients more available
low bulk density value raises the porosity of the soil
75
A summary of a laboratory report on a sample of soil is provided in the table shown
Nitrogenous fertiliser
Gypsum
Herbicide
Lime

12 Ag quiz 2 Flashcards | StudBud