| Plant growth being affected by internal as well as external factors, environmental factors are also able to influence plant life term and reproduction. | ||
| Plant growth can be influenced by such factors as the genotype of the plant, environmental and biotic factors, and its seasonal growth pattern. | |||
| Environmental factors are the main factors having an influence on plant growth, its period of life and reproduction. | |||
| There are many factors affecting plant growth, its life term, maturing and reproduction, none of them being the most important. |
:
, , , , .
, (The genotype of a plant affects its growth 1), (Growth is also determined by environmental factors 2). , , (annual plants live and reproduce within one growing season, biennial plants live for two growing seasons and usually reproduce in second year, and perennial plants live for many growing seasons and continue to reproduce once they are mature. These designations often depend on climate and other environmental factors; plants that are annual in alpine or temperate regions can be biennial or perennial in warmer climates 4).
, Plant growth being affected by internal as well as external factors, environmental factors are also able to influence plant life term and reproduction ( , , ).
N 13
:
I think you will _______ from getting a new job.
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| benefit | ||
| promote | |||
| win | |||
| pay |
N 14
:
Its important for each student to get ________ experience of work.
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| practical | ||
| theoretical | |||
| general | |||
| complete |
N 15
:
Urban _______ play an important role in urban ecology because they filter air, provide shelter to animals and recreational area for people.
|
| forests | ||
| timber | |||
| woods | |||
| vegetation |
|
|
|
:
, :
forests ;
timber ;
woods , ();
vegetation .
forests : , , .
N 16
: ()
An integrated approach of using the interactive benefits of combining trees and shrubs with crops and livestock is
|
| agroforestry | ||
| farming | |||
| afforestation | |||
| forestry |
N 17
:
:
