Explanation

The longest cell in animals is the nerve cell.

Nerve cells are also known as neurons and in the human body, they can be up to 3 feet long.

Explanation

Luteinizing Hormone (LH) is a glycoprotein hormone.

It is composed of two subunits, alpha and beta, with attached carbohydrate groups.

LH plays a crucial role in regulating the reproductive system, particularly in triggering ovulation in females and stimulating testosterone production in males.

It is not a steroid, peptide, or lipid, but specifically a glycoprotein.

Explanation

•  A protein molecule may have 21-30 Amino Acids
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• The human body uses just 21 amino acids to make all the proteins it needs to function and grow. 

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  RY 23-12-2022

Explanation

One Coulomb (C) is the unit of electric charge and is defined as the amount of charge transported by a steady current of 1 Ampere (A) flowing for 1 second.

Mathematically: 

1Coulomb=1Ampere×1second

This means that if a current of 1 Ampere flows through a conductor for 1 second, the total charge transported is 1 Coulomb.

Explanation

Chondrichthyes, which include sharks, rays, and skates, have a high concentration of urea in their blood.

This is due to their method of osmoregulation, which helps them maintain fluid balance in their often saline marine environments.

Explanation

The reason is that the rails expand in summer

. The gap is provided to allow for this expansion.

If no gap is left the expansion in summer will cause the rails to bend sideways

This may result in train accidents.

Explanation

Tyloses are outgrowths from xylem parenchyma cells

They grow into the lumen of tracheary cells through pits, balloon out, and occlude the cell interior.

Tyloses are typically associated with the process of defense against pathogens

They are commonly found in the xylem of certain trees and plants.

Explanation

Oceans cover about 70 percent of the Earth's surface and about 97 percent of all water on and in the Earth is saline—there's a lot of salty water on our planet.

Explanation

Explanation

 None of these options are completely incompressible.

While solids are the least compressible among the three states of matter (solid, liquid, and gas), all of them can be compressed to some degree.