Questions

Nine in total. 6 daughters and a brother in common, 2 parents.

The centripetal force having been removed the body cannot  execute the curved path

Rust forms when oxygen reacts with chemicals in rocks, and that is often the case with many other elements in general. Like a copper nail being exposed to the air will rust.

A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function.

Hence, Cells with similar markers stick together and function as tissues.

The inherited traits of an organism are controlled by DNA molecules.

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.

Many carbohydrates contain one or more modified monosaccharide units that have had one or more groups replaced or removed.

Chitin is one of many naturally occurring polymers. It is one of the most abundant natural materials in the world. Over time it is bio-degradable in the natural environment. Its breakdown may be catalyzed by enzymes called chitinases, secreted by microorganisms such as bacteria and fungi, and produced by some plants.

Chitin is composed of repeating units of N-acetylglucosamine, a nitrogen-containing form of glucose.