Practice Questions

TLS Online TPP Program

#Question id: 8848

A carbon skeleton is covalently bonded to both an amino group and a carboxyl group. When placed in water it

#Section 2: Evolution

would function only as an acid because of the carboxyl group.
would function only as a base because of the amino group.
would function as neither an acid nor a base.
would function as both an acid and a base.

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TLS Online TPP Program

#Question id: 9212

#Section 2: Evolution

Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutants can be responsible for ________.

TLS Online TPP Program

#Question id: 16870

#General Aptitude

I would rather have a copy ………a book.

TLS Online TPP Program

#Question id: 10637

#Section 2: Evolution

Which of the following graph represent logistic growth pattern and exponential growth respectively?

TLS Online TPP Program

#Question id: 8921

#Section 2: Evolution

Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?

TLS Online TPP Program

#Question id: 4645

#Section 2: Evolution

The treeʹs horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Letʹs say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.

Which of the five common ancestors, labeled V—Z, has given rise to the greatest number of species, both extant and extinct?