Blood cells are not present in the nail and hair. \r\rA basic component of hair, skin, and nails are made up of protein, Keratin. Keratin in the skin's outer layer to create a protective barrier.

There are four types of teeth: Canine, Incisors, Molars and Premolars.

The xylem is of two types on the basis of origin, primary xylem and secondary xylem.\r\r Primary xylem: Initial formed primary xylem is known as protoxylem, while newly formed primary xylem is known as metaxylem. \rThe two types of arrangements of primary xylem are endarch and exarch.\r ... Read More

Strong acids are corrosive in nature and are a strong dehydrating agent. When corrosive acids react with the skin, they hydrolyze the fats. Strong acids are harmful to the skin, eyes and respiratory tract. Acids are harmful to the digestive system when swallowed. Symptoms:When an acid reacts with the skin, it develops ... Read More

Given:$128÷234\times63-234\times68 $ To do: Solve the given expression. Solution: $128÷234\times63-234\times68 $ Using BODMAS rule. There are no brackets to simplify. There is no 'of' to multiply. Next in priority is Division, Addition and lastly Subtraction $128÷234\times63-234\times68 $ = $\frac{128}{234} \times 63 - 234 \times 68$ = $\frac{64}{13}\times7 ... Read More

Locomotion is the ability of cells or organisms to move or displace from one place to another place.\r\rIn multicellular animals, locomotive movements include walking, running, climbing, jumping, crawling, flying, etc. depending on the habitat of the animal. \r\rTerrestrial animals are capable of terrestrial locomotion with special adaptations of feet and ... Read More

Yes, most of the fish and birds have bones in their tails, fins, and wings to support their body framework and also to protect their body organs. In fish, the bones in fins and tail enable it to swim easily through the water currents, change its direction of movement, and ... Read More

Drip irrigation system consists of valves known as dripping valves, while spray guns and nozzles are used in sprinkler system. Both the types of irrigation systems have their own advantages and disadvantages.

There are two groups of fish, based on their endoskeleton- Chondrichthyes, and Osteichthyes. 1) Fish belonging to the Chondrichthyes group have their endoskeleton made of cartilage. Examples include sharks, rays, etc. These fish have cartilaginous tissues all over their body, including tails. 2) Fish belonging to ... Read More

Electrolytic Decomposition means the compound decomposes or breaks up in ions when electricity is passed in a solution.Eg: When we pass electricity in a solution of Na-Cl and water NaCl is broken in ions.Electrolysis of water is the decomposition of water into oxygen and hydrogen gas due to an electric ... Read More