Diffusion in phloem. Hope this help. ;)
Answer:
Option (1) and (3)
Explanation:
The ocean covers a large portion of earth and the temperature of the ocean rises due to the high absorption of heat. This is because of the higher amount of incoming solar radiation and the increasing green house gases in the atmosphere of the earth.
This increasing temperature of the ocean has certain negative effects.
Due to the increasing ocean temperature, the ocean water will become warm that will enhance the temperature of the polar water, as a result of which the glaciers and ice caps of the polar region will melt.
The increasing ocean water temperature will lead to the evaporation of water into the atmosphere, which will eventually cause rainfall. This will cause flooding in the low-elevated coastal areas. There occurs increasing frequency of major storms.
Thus, the correct answers are options (1) and (3).
The right answer is C. breathing.
Breathing is a physiological process that supplies the body with oxygen and releases it from carbon dioxide.
The pulmonary alveoli are located in the lungs and allow respiratory gas exchange between the internal medium (the blood) and the external environment (the air or the atmosphere).
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Answer:
The polar bears which live in the tundra are not as omnivorous as the polar bears of the temperate forest because there are lesser plants and trees to be seen in the tundra region. The polar bears of the tundra are white in colour so that they can camouflage with the snow which is an adaptation for them to hide from their predators. The polar bears also have thick layers of fat which help to keep them warm as the temperature is very cold in these regions.
The choice of diet is important for organisms because an organism will be able to survive in an environment only if it has enough food sources to survive in a particular area. Hence, an organism should have the adaptation to feed on the sources of food available in an area in order to survive in the area.
