*A polar bear is adapted to live in the arctic. Which of the following is NOT true?
A)They have thick layer of fat for insulation
B)They have big feet to produce high pressure on the snow
C)They have waterproof fur for insulation when in water
D)Their fur looks white to blend in with their surroundings

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.

1. aerobic

2. lactic acid fermentation

3. glycolysis

4. anaerobic

5. alcohol fermentation