Explanation

The lifespan of a red blood cell is around 120 days.

Blood cells are made in the bone marrow.

Explanation

DNA (Deoxyribonucleic Acid) has a double helix structure,

which consists of two long strands of nucleotides twisted around each other.

This structure was discovered by James Watson and Francis Crick in 1953.

Explanation

Chemical energy is stored in a dry cell.

A dry cell is a device that converts chemical energy into electrical energy.

Chemical energy is the energy stored in the bonds of atoms and molecules. 

Explanation

Explanation

Pistil, the female reproductive part of a flower.

Explanation

Entropy is a measure of disorderness or randomness of a system.

 *****

Explanation

Detailed Solution – A cation with +1 charge

A cation with +1 charge has 10 electrons and 11 protons.

Explanation

Graphite is used for making the electrode in a dry cell.

Explanation

• The Golgi apparatus is a membrane-bound organelle that contains enzymes.
• It is responsible for processing and modifying proteins and lipids synthesized by the endoplasmic reticulum.
• It is a key component of the cellular machinery involved in protein secretion and cell signaling.

Explanation

Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium.

DNA stands for Deoxyribonucleic acid.