милена0071

14.02.2020 02:33

Биология

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Decide which statements are TRUE or FALSE by marking them with «+» or «-». 1
Light energy stored by plants in the form of organic substances during photosynthesis is released and used by plants during respiration.

2
Proteins and carbohydrates consist of three elements: carbon, oxygen and hydrogen.

3
The end (harmful) substances containing nitrogen are formed: urea and uric acid.

4
As for humans and other mammals, the main nitrogen-containing substance is urea.

5
Tropical, equatorial plants are plants of a long day.

6
Nasties include closing and opening of flowers, folding leaves.

7
The growth of the root down into the soil, under the influence of gravity, is called positive heliotropism.

8
Biorhythms are developmental responses of plants to the relative lengths of light and dark periods.

9
The growth of leaves and shoots in the direction of sunlight is called positive phototropism.

10
An example of photoperiodism can be considered the rhythm of the heart in humans.