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
3198 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
6802 Views

Describe four characteristics of an efficient respiratory surface

Four characteristics of an efficient respiratory surface are: thin epithelium, large surface area, abundant capillaries, ventilation mechanism.
GR
Answered by Grace R. • Biology tutor
30222 Views

What rehearsal techniques could you use to explore the relationship between two characters?

An insightful exercise you could consider would be status cards. After asking the cast to move freely around the space in character, you ask each to choose an imaginary card from a deck which signifies their...
RW
Answered by Rachael W. • Drama tutor
6347 Views

How do I go about adding, subtracting, multiplying and dividing fractions?

The key thing to remember with fractions, is that adding and subtracting them require a COMMON DENOMINATOR. We achieve this by multiplying both the top and bottom of fractions by a number that allows us to a...
SR
Answered by Sam R. • Maths tutor
4548 Views