Questions

The correct order of evolutionary history from the above given options is jellyfish, reptiles, mammals.

The oxygenated blood  flows through pulmonary veins then leaves the lungs, which return it to the left heart, completing the pulmonary cycle.

You can divide the frequency of a clock by just implementing T Flip flop.

Give clock as clock input and tie the T input to logic 1.

0  0  1

That's what some of the compilers would give. But some other compiler may give a different answer. The reason is, when a single expression causes the same object to be modified and then inspected the behaviour is undefined.

Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request.

Ctrl + F is a shorcut keyword and it is used for searching the word you want in the large document in the M.S. Word.

Magma is molten rocks beneath the earth's crust. Hot springs are heated geothermally by underlying magma.