Explanation

Treponema pallidum is a spirochete bacterium that causes syphilis.

This is the correct answer as confirmed by multiple sources. 

Explanation

Glucose molecules contain multiple hydroxyl groups (-OH) which can form hydrogen bonds with water molecules, allowing them to readily dissolve in water. 

Explanation

Species facing imminent extinction are called endangered.

Specifically, an endangered species is at very high risk of extinction soon, either globally or within a specific region. 

Explanation

The Fischer-Tropsch synthesis involves the combination of CO and H₂ to form alkanes. 

CO (carbon monoxide) and H₂ (hydrogen): are collectively known as "syngas".

The Fischer-Tropsch process uses a catalyst to convert this syngas into liquid hydrocarbons, primarily alkanes. 

Explanation

 The precise definition of organic chemistry is the Study of carbon-containing compounds. 

Organic chemistry focuses on the study of compounds that contain carbon, regardless of whether they are hydrocarbons or their derivatives.

While hydrocarbons are a subset of organic compounds, the definition encompasses all carbon-based molecules

Explanation

The wave velocity in any medium depends on all of the above:

Elasticity:

A medium's elasticity determines how easily it can resist deformation and return to its original shape when force is applied.

Higher elasticity means the wave can travel faster through the medium. 

Density:

The density of a medium also affects wave velocity.

Denser media tend to slow down wave propagation. 

Homogeneity:

A homogeneous medium has consistent properties throughout, meaning the wave velocity will be uniform in all directions. 

Explanation

If the force acting on a body is plotted along the y-axis and the displacement covered as a result is plotted along the x-axis, then the work done is given by the Area under the curve.

Explanation

In a reversible reaction, a catalyst reduces the time to reach equilibrium by increasing the rate of both forward and reverse reactions. 

Explanation

 Sir William Ramsay, a Scottish chemist, is credited with the discovery of the noble gases.

He first discovered argon and later found neon, krypton, and xenon. 

Explanation

Oxidative phosphorylation is coupled with the electron transport chain (ETC).

This coupling is essential for cellular respiration and the production of ATP, the cell's main energy currency.