Practice Questions

TLS Online TPP Program

#Question id: 10324

Which of the following is not true of all horizontally oriented phylogenetic trees, where time advances to the right?

#Unit 9. Diversity of Life Forms

Each branch point represents a point in absolute time.
Organisms represented at the base of such trees are ancestral to those represented at higher levels.
The more branch points that occur between two taxa, the more divergent their DNA sequences should be.
The common ancestor represented by the rightmost branch point existed more recently in time than the common ancestors represented at branch points located to the left.

More Questions

TLS Online TPP Program

#Question id: 382

#Unit 1. Molecules and their Interaction Relevant to Biology

The molar ratio of sodium acetate to acetic acid in a buffer solution with a pH OF 5.76 is 10:1. Assuming the total buffer concentration is 2.2 X 10^-2 mol/L, how many grams of sodium acetate (m.w. 82) and how many grams of acetic acid (m.w. 60) should be used in preparing a litre of the solution?

TLS Online TPP Program

#Question id: 11446

#Unit 7. System Physiology – Animal

A physiologist is studying the homeostatic control of blood pH. What type of receptor might be responsible for detecting changes in blood pH?

TLS Online TPP Program

#Question id: 24003

#General Aptitude

If you have been given the additional responsibility of the school library, you think that

TLS Online TPP Program

#Question id: 4582

#Unit 11. Evolution and Behavior

Fossils found in strata reveal that ________.