In an ecosystem,
(1) cycling of energy and nutrients is a coupled process.
(2) cycling of energy is an independent process.
(3) movement of energy is unidirectional.
(4) both macro and micro consumers are necessary .
Choose the correct option for statement/s which complete / s the above statement.

An electron in an hydrogen atom has total energy of -3.4eV . Choose the correct statement (s):

A cyclic process is occurring in C3 plant, which is light dependent, and needs O2. This process doesn't produce energy rather it consumes energy. What are the end products of this process?

A cyclic process is occurring in C3 plant, which is light dependent, and needs O2. This process doesn't produce energy rather it consumes energy. Can you name the given process?

A cyclic process is occurring in C3 plant, which is light dependent, and needs O2. This process doesn't produce energy rather it consumes energy. Where does it occur?

A cyclic process is occurring in C3 plant, which is light dependent, and needs O2. This process doesn't produce energy rather it consumes energy. Is it essential for survival?

For the energy levels in an atom which of the following statement(s) is/are correct?

The shows a radiant energy spectrum graph for a black body at at temperature T Choose the correct statements (s) .

Read the given statements and select the correct option. Statement 1 : The cloning vector is required to have very few, preferably single, recongnition sites for the commonly used restriction enzymes. Statement 2: Presence of more than one recongnition sites within a cloning vector will generate several fragments, which will complicate the process of gene cloining. 1) Both statements 1 and 2 are correct 2) statement 1 is correct but statement 2 is incorrect 3) statement 1 is incorrect but statement 2 is correct 4) None of the above