Top answers


How does an invasive species cause negative effects on the biodiversity of an ecosystem?

Invasive species can cause negative effects on biodiversity through out-competing native species, becoming a voracious top predator and killing most of the native animals/fauna (especially since if there are...
SB
Answered by Susan B. • Biology tutor
3289 Views

Starting from the fact that acceleration is the differential of velocity (dv/dt = a) derive the SUVAT equations.

Intergrating with respect to time, you get that v = u + at. Knowing that velocity is just the rate of change of your position ds/dt = v, and sustituting the previous expression for v, you get ds/dt = u + at....
BW
Answered by Ben W. • Maths tutor
6930 Views

In answer section.

The polymerase chain reaction (PCR) is a process to 'amplify' DNA to provide sufficient quantities for further analysis. PCR involves repeated cycles of heating and cooling of the reaction mixture. A single ...
JP
Answered by James P. • Biology tutor
3542 Views

Prove by induction that n! > n^2 for all n greater than or equal to 4.

This is a fairly typical example of a question from the Further Maths syllabus. We wish to demonstrate that for all integers n greater than or equal to 4, n! > n 2 . We briefly recap that n! is the produc...
JB
20836 Views

What was the short term significance of the 1905 revolution on Russia?

The essence of the question focusses on the short-term impact of the 1905 revolution with particular focus on the significance of such an event. Identifying the necessary and relevant factual knowledge is an...
NH
Answered by Nicholas H. • History tutor
5294 Views