Questions

Secondary storage therefore needed because it is non-volatile, meaning it retains its contents without the need for a power supply. It also has the large storage capacity needed to store the operating system and all the programs and files needed by a modern computer system.

In microprocessor more op-codes, few bit handling instrucitons. But in Microcontroller. fewer op-codes, more bit handling Instruction, and also it is defined as a device that includes micro processor, memory, & input / output signal lines on a single chip.

the basic architectual difference is that microcontroller has an programmable memory while it is not the case with mivroprocessors.

In general, polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes.
As water molecules are polar, polar molecules dissolves in water.

Dysfunctional behaviors are maladaptive which means that they interfere with everyday life.

The statements true about viruses are :

1. The capsid enters the host cell if the virus is enveloped.

2. Enveloped viruses bud from the host cell. 

3. HIV contains reverse transcriptase.

4. A retrovirus contains RNA.

Study of Life in outer space or search of life external to Earth is known as Exobiology.

P J Nayak