Questions

Panama Canal is called the 'Gateway of the Pacific'.

The liver is a large, meaty organ that sits on the right side of the belly. It is the largest & heaviest internal organ in the human body.

Tax that uses the same rate for all income levels is proportional tax.

The scarcity definition of economics is credited to Lionel Robbins.

Tetrad is a homologous chromosome pair in the given options. A homologous chromosome pair is a pair of chromosomes one from father and one from mother that has same gene sequence after the process of meiosis.

Mitochondria which is present in both plant and animal cells supplies energy to the cells and hence called as the powerhouse of the cell.