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Q 1/50
Score 0
Factors affecting polulations
30
Age structure
Sex ratio
All of these
Distribution
Q 2/50
Score 0
What term does the following define? "Organisms will arrange themsleves according to resource quality and distribution"
30
Idea free distribution
Law of diminishing returns
Threshold value
Marginal value theorem
50 questions
Q.
Factors affecting polulations
1
30 sec
Q.
What term does the following define? "Organisms will arrange themsleves according to resource quality and distribution"
2
30 sec
Q.
The ideal free distribution theory states that organisms will arrange themselves in response to available resources to maximise fitness and minimise competition. How should the fish arrange themselves based upon the picture shown.
3
30 sec
Q.
Under the threat of predation and when faced with patches of differing uality the herd can maximise its returns by
4
30 sec
Q.
What term does the following define? " The maximum number of organisms an ecosystem can support.
5
30 sec
Q.
Which term defines the following? "Birth rate greatly exceeds death rate (population will theoretically double with every reproductive cycle).
6
30 sec
Q.
Which term defines the following? "Birth rate is equal to death rate and the population is in a state of equilibrium.
7
30 sec
Q.
Which term defines the following? "Birth rate is very low as is death rate and population is only gradually increasing"
8
30 sec
Q.
Exponential growth beyond K is
9
30 sec
Q.
K selected species will usually have
10
30 sec
Q.
K selected species will usually have
11
30 sec
Q.
K selected species will usually have
12
30 sec
Q.
Birds show wat kind of survivorship?
13
30 sec
Q.
r or K ?
14
30 sec
Q.
r or K ?
15
30 sec
Q.
r or K ?
16
30 sec
Q.
r or K ?
17
30 sec
Q.
r or K ?
18
30 sec
Q.
Another limiting factor of populations and thier potential to grow is their
19
30 sec
Q.
The two defining features of the intrinsic rate of increase of an organism are.
20
30 sec
Q.
In a population that has low numbers but is otherwise healthy and has good age and sex ratios the intrinsic rate of increase will be
21
30 sec
Q.
In a population that has high numbers and is approaching K but is otherwise healthy and has good age and sex ratios the intrinsic rate of increase will be
22
30 sec
Q.
Organisms compete for
23
30 sec
Q.
This is an example of
24
30 sec
Q.
This is an example of
25
30 sec
Q.
When an animal of one species uses resources and makes them less available to other members of the same species it is called...
26
30 sec
Q.
When individuals exclude others from territories and the displacement of subordinate individuals by dominant ones occurs to gain/prevent mating it is called
27
30 sec
Q.
An organism's physiological tolerances and the abiotic constraints of the environment in which it lives forms its
28
30 sec
Q.
The effects of competition and predation on the position of the organism within its ecosystem form its
29
30 sec
Q.
Two or more species can occupy the same findamental niche as long as
30
30 sec
Q.
When one species outcompetes another to occupy the same niche it is called
31
30 sec
Q.
Competitive exclusion is also known as
32
30 sec
Q.
An evolutionary process (that avoids competitive exclusion)in which two similar species occupying the same niche will show greater variation where their ranges overlap (due to competition) than they do where they exist in isolation can result in
33
30 sec
Q.
Evolution involves
34
30 sec
Q.
The over production of offspring is part of the evolutionary process
35
10 sec
Q.
Chiasmata is part of the evolutionary process
36
10 sec
Q.
Mutation is not part of the evolutionary process
37
10 sec
Q.
A selective pressure is defined as
38
30 sec
Q.
Selection acts on a population in 3 ways these are:
39
30 sec
Q.
Name the type of selection shown
40
30 sec
Q.
Name the type of selection shown
41
30 sec
Q.
Name the type of selection shown
42
30 sec
Q.
Many traits have neither a positive or negative selective effect. What type of selection is this?
43
30 sec
Q.
Evolutionary change is always slow
44
5 sec
Q.
What is the image an example of?
45
30 sec
Q.
The image represents and example of
46
30 sec
Q.
Who is responsible for this confusing set of graphs?
