Question

What is essential for all living organisms?
A. To walk
B. Food
C. Milk
D. None of the above

Answer 1

Hint: All living organisms have basic needs for survival like sunlight, water, air, habitat, and food. These basic/fundamental needs help keep our cells running the way they should.

Step by step answer:Only the higher animals can walk and microorganisms do not walk. Many species of monkeys and apes use a setup of arboreal locomotion known as brachiation. Some elements of the gymnastic sport of unequal bars resemble brachiation, but most adult humans do not have the upper body strength required to sustain brachiation.
-Food is the primary priority in basic needs. Each and every organism requires food. The plants prepare their own food and animals fed on plants are called herbivores. The animals which sustain/feed on other animals are called carnivores.
-Milk the food source for mammalian infant babies at the early stage of birth. Microorganisms do not produce milk. All organisms do not produce milk. The milk contains various minerals like calcium, protein, iodine potassium, phosphorus, and some vitamins like B2 and B12.
Hence option B is correct.

Note: All living things need food to survive. Plants produce their own food. Highly developed organisms like tiger, monkey, cat, dog, lion, human and etc depend on plants for the food. The food gives the energy to perform the daily activities and energy to carry out life processes inside the body.