Prelim | U2: Concept of Limiting Factors

Question 1

Affects the survival/ quality of life of organisms

Answer 1

Limiting factors

Question 2

Any environmental factor that restricts the ability of an organism, or a population to grow, survive, or reproduce

Answer 2

Limiting factors

Question 3

Examples of abiotic limiting factors

Answer 3

Food and water
Temperature
Soil quality
Light
Salinity
pH
Time

Question 4

Examples of biotic limiting factors

Answer 4

Disease
Predation

Question 5

Proponent of the Law of the Minimum

Answer 5

Justus Von Liebig

Question 6

Plant growth is dictated by least available resource (limiting factor)

Answer 6

Law of the Minimum

Question 7

Deficiency in one nutrient cannot be compensated by a surplus of any of the others

Answer 7

Law of the Minimum

Question 8

The shortest barrel stave prevents the barrel from being fiilled with water

Answer 8

Barrel concept (Law of the Minimum)

Question 9

The balance between the nutrients is essential for normal growth, development, reproduction, and eventually to macimize tyield

Answer 9

Law of the minimum

Question 10

What is a scurvy?

Answer 10

Vitamin C deficiency

Question 11

Proponent of the Law of Tolerance

Answer 11

Victor Ernest Shelford

Question 12

Too much of anything is as dangerous as too little

Answer 12

Law of Tolerance

Question 13

How much environmental change can organisms tolerate

Answer 13

Law of Tolerance

Question 14

Organisms cope up with a constantly changing evironment by undergoing internal adjustments to make sure that their body remains the same and stable

Answer 14

Homeostasis

Question 15

Maintenance of (1) helps organisms cope
with (2). Failure to do so may have adverse effects and can even lead to death.

Answer 15

1. homeostasis
2. limiting factors

Question 16

Homeostasis is maintained by (1),
which allows the body to respond to the change by going against it and bringing the body back to its (2)

Answer 16

1. feedback mechanisms
2. stable state

Question 17

From an environmental pespective any (1) that would upset the balance of (2) can be limiting to organisms. Environmental Science aims to avoid activities that upset the (3) of these factors.

Answer 17

1. anthropogenic activity
2. external factors
3. natural balance