Whether all organisms are similar? Justify your answer.

Whether all organisms prepare their own food?

Study the given pedigree chart and answer the follwing question: is the trait autosomal or sex linked? Justify your answer.

Answer the following questions: In the following case, state whether work is done or not. Justify your answer: Activity: A student reads a book.

Answer the following questions: In the following case, state whether work is done or not. Justify your answer: Phenomenon: The revoluition of the earth arpound the sun.

Answer the following questions: In the following case, state whether work is done or not. Justify your answer: Activity: A person carries some goods on a handcart.

Answer the following questions: In the following case, state whether work is done or not. Justify your answer: Activity: One applies a force on a big rock but fails to move it.

Answer the following questions: In the following case, state whether work is done or not. Justify your answer: Activity: A body slides on a frictonless horizontal surface with a uniform velocity.

Answer the following questions: In the following case, state whether work is done or not. Justify your answer: Activity: A worker climbs a staircase with some load o n his head.

Is the steady electric current the only source of magnetic field? justify your answer.

Let f:N->N be defined as f(n)= (n+1)/2 if n is odd and f(n)=n/2 if n is even for all n in N State whether the function f is bijective. Justify your answer