Hybrid animals cannot reproduce. Hybrids such as Mules and hinnies cannot produce viable gametes. This is because of the presence of extra chromosome which cannot make a homologous pair at meiosis. The meiosis gets disrupted, thus the viable sperm and eggs are not formed in hybrids.

The positioning of molecules affects the density of an object. Objects with tightly packed molecules are denser than those where the molecules are spread out.Objects that are denser than water sink and those less dense float.Hollow things often float too as air is less dense than water.      Objects that neither float nor ... Read More

The Vessel is also known as trachea, it is one of the cell types and the most specialized and efficient conducting structure found in xylem(the fluid containing tissue of plants). It is an efficient system for transporting water, including necessary minerals from the root to the leaves and other parts of ... Read More

Holozoic nutrition- The term Holozoic comes from the Greek word: holo-whole;  zoikos-of animals. It is a type of heterotrophic nutrition in which the complex food is taken either in solid or liquid form from the outside and is broken down into small pieces in order to digest inside the body.There ... Read More

Viruses are tiny infectious agents that depend on living cells to multiply themselves. They may use an animal, plant, or bacteria as a host to survive and reproduce. There are two processes that are used by viruses to replicate: 1. Lytic cycle.2. Lysogenic cycle. Some viruses reproduce or multiply using both ... Read More

Your question is about the different types of gases found in the air.They are 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.

The gap is left between the rails on the railway track to provide a space for the iron metal to expand and contract during the summer and winter season due to the change in the temperatures. If the gap is not left in between then the rails will bend more and ... Read More

When whole milk sits out, tiny fat molecules float to the top, forming a layer of cream that can be skimmed and collected.To make butter, the cream is agitated (stirred up) so that the fat molecules get shaken out of position and clump together. This is known as Churning.Churning is ... Read More

1. Mg + H2SO4 --------> MgSO4 + H2. Mg + H2SO4 = MgSO4 ... Read More

Plant tissues are classified as meristematic and permanent tissue.Permanent tissues are derived from meristematic tissue.The Permanent Tissues are those types of tissues that are completely grown, may be living or dead but lost their ability to divide.Permanent Tissues are classified into two parts:1.Simple Permanent Tissue 2.Complex Permanent Read More