Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?

TLS Online TPP Program

#Question id: 343

#Unit 1. Molecules and their Interaction Relevant to Biology

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

TLS Online TPP Program

#Question id: 23611

#General Aptitude

Pointing to a boy in the photograph Reena said, “He is the only son of the only child of my grandfather.” How Reena is related to that boy?

TLS Online TPP Program

#Question id: 112

#Unit 1. Molecules and their Interaction Relevant to Biology

The major groups of lipids can be separated by silicic acid column chromatography by eluting with

TLS Online TPP Program

#Question id: 10225

#Unit 6. System Physiology – Plant

Air circulation around the leaf removes heat from the leaf surfaces if the temperature of the leaf is higher than that of the air; this phenomenon is called

TLS Online TPP Program

#Question id: 50

#Unit 1. Molecules and their Interaction Relevant to Biology

The enzyme fumarase catalyzes the reverse hydration of fumaric acid to l-malate, but it will not catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an example of: