Question Discussion & Solution

The correct answer is a Female egg cell.

The female egg cell is the largest cell in the human body. The nerve cell is the longest cell in the body.

• The egg cell or ovum is the largest cell in the human body.
• It has a diameter of about 0.1 mm.
• A nerve cell is the longest cell in the human body.
• Muscle cells are the primary cells responsible for the movement of the body. There are three types of muscle cells found in our body, namely ;
  • Skeletal muscle or voluntary muscle.
  • Smooth muscle or involuntary muscle.
  • Cardiac muscle.

Mistake Points

• The smallest cell is Mycoplasma (PPLO-Pleuro pneumonia-like organisms).
• It is about 10 micrometres in size.
• The largest cell is an egg cell of ostrich.
• The longest cell is the nerve cell.
• The largest cell in the human body is the female ovum.
• The smallest cell in the human body is the male gametes, that is, sperm.

Concept:

A functional dependency is a constraint between two sets of attributes from the database.

Explanation:

In general form, a functional dependency denoted by X -> Y between two sets of attributes X and Y that are subsets of R specifies a constraint on the possible tuples that can form a relation state r of R.

The constraint is that for any two tuples T₁ and T₂ in r that have T₁[X] = T₂[Y], they must also have T₁[Y]

= T₂[Y]. It means that values of Y component of a tuple in r depend on or are determined by the value of X component.

If a relation R contains attributes (X and Y). Then X -> Y is a functional dependency. It means X functionally determines Y in R if and only if two tuples agree on their X value, they must necessarily agree on their Y value.

Copper is a type of metal similarly, rupee is a currency of India.

The correct answer is Silicon.

• An integrated circuit, or IC, is a small chip that can function as an amplifier, oscillator, timer, microprocessor, or even computer memory.
• An IC is a small wafer, usually made of silicon, that can hold anywhere from hundreds to millions of transistors, resistors, and capacitors.
• An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material that is normally silicon.

Key Points

• Silicon is a highly pure, easy to use, and cheap semiconductor, perfect for the now huge computer chip industry.
• Silicon is used because it can be used as either an insulator (doesn't allow electricity to flow) or a semiconductor (allows a little flow of electricity).

Important Points

The advantages of ICs :

• Extremely small in size.
• Low power consumption.
• Reliability.
• Reduced cost.
• Very small weight.
• Easy replacement. 

​The correct answer is Truck farming.

Key Points

• The farmers specialize in vegetables only, this type of farming is known as Truck farming.
• In the regions where farmers specialize in vegetables only, the farming is known as Truck farming, and the distance of truck farms from the market is governed by the distance that a truck can cover overnight, hence the name truck farming.
• Vegetable farms are in some regions known as truck farms: "truck" is a noun for which its more common meaning overshadows its historically separate use as a term for "vegetables are grown for the market".
• The production of crops of some vegetables on an extensive scale in regions especially suited to their culture primarily for shipment to distant markets known as Truck farming.
• The major truck-farming areas are in California, Texas, Florida, along the Atlantic Coastal Plain, and in the Great Lakes area.
• Centres for specific crops vary with the season. Among the most important truck crops are tomatoes, lettuce, melons, beets, broccoli, celery, radishes, onions, cabbage, and strawberries.

Additional Information