Photoautotrophs are those organisms that can make their own food using sun light with the help of the process of photosynthesis. Plants can prepare their own food using sunlight. Hence they are Photoautotrophs.

Answer: D) All of the above Explanation:

Answer: A) contains fluoride to harden the tooth enamel Explanation: Saliva is produced by the salivary gland which helps in food digestion.   Option A) contains fluoride to harden the tooth enamel is not the function of saliva.

Answer: B) 25 kgs Explanation: Initial wheat per kg cost be Rs. 100 Then, monthly expenditure of the family = 30 x 100 = 3000 After increase in cost, Let P be new monthly consumption of family. P x 132 = 110/100 x 3000 => P = 25 kg.

Answer: B) 7.5 Explanation: The given number series follows a pattern that 11 11 - 5.5 = 5.5 5.5 + 4.5 = 10 10 - 3.5 = 6.5 6.5 + 2.5 = 9 9 - 1.5 = 7.5   Hence, the next number in the given number series is 7.5.

To obtain exotic spices or to find trade items are not the reasons for christian missionaries went to Asia.

When you are Asleep or Dead, you cannot answer Are you Asleep or Dead?

Answer: C) Red algae Explanation: The floridian starch is reserve food materials in the red algae or the members of class Rhodophytae. It is a characteristic feature of this group.