Practice Questions

TLS Online TPP Program

#Question id: 12327

Which of the following is the most accepted hypothesis as to why invasive species take over communities into which they have been introduced?

#Unit 10. Ecological Principles

Invasive species are more aggressive than natives in competing for the limited resources of the environment.
Invasive species are not held in check by the predators and agents of disease that have always been in place for the natives.
Humans always select which species will outcompete the nuisance native species.
Invasive species have a higher reproductive potential than native species.

More Questions

TLS Online TPP Program

#Question id: 32388

#Unit 2. Cellular Organization

What is the role of troponin I in muscle contraction?

TLS Online TPP Program

#Question id: 11051

#Unit 10. Ecological Principles

Disadvantages of living in groups include

TLS Online TPP Program

#Question id: 586

#Unit 1. Molecules and their Interaction Relevant to Biology

At the beginning of an enzyme-catalyzed reaction the ________ is negligible.

TLS Online TPP Program

#Question id: 2685

#Unit 2. Cellular Organization

There are about 3 billion chemical base pairs in human DNA. Approximately what percent of these base pairs actually code for genes?

TLS Online TPP Program

#Question id: 2783

#Unit 2. Cellular Organization

Which of the following lines of evidence is indicative of the presence of a gene in an unknown DNA sequence?