D. Give reasons for the following.
1. A pitcher plant feeds on plants though it can prepare its own food.
2. Small intestine is provided with numerous villi.
3. Digital thermometers are becoming popular nowadays
4. Lemons are sour in taste.
5 . Siberian crane migrates during winter.
Answers
Answer:
1. Pitcher plant contains chlorophyll, hence it can do photosynthesis and prepare its own food. ... Therefore its an insectivorous plant. Pitcher plant can live without insect but it would be more healthier if it traps insects for nutrition.
2. Millions of tiny finger-like structures called villi project inwards from the lining of the small intestine. The large surface area they present allows for rapid absorption of digestion products.
3.A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object)
4. This is because they contain citric acid, which is a weak organic acid found in many fruits and vegetables. True to their name, citrus fruits have particularly high concentrations of citric acid. ... When you bite into a lemon, the citric acid activates taste buds along the sides and center of your tongue.
5.Why they Migrate? They are migratory birds and migrate to all tropical countries with warmer winters. The winters are cold in their native places: Russia and Siberia, so they fly east in search of warmer climate. ... Hence, these birds travel to a number of south-east Asian countries including India.
make me as brainliest