Top answers

During succession the species present changes. Explain why.

The pioneer species (or any other species) changes the environment, making it less hostile. Also some species are better competitors and out-compete others.
AB
Answered by Alfie B. • Biology tutor
9177 Views

How is structure relevant to enzyme function?

Enzymes are functional proteins which are used to catalyse reactions. They all exhibit primary, secondary and tertiary structure, and some which have more than one polypeptide chain have quaternary structure...
AM
Answered by Alec M. • Biology tutor
29271 Views

The curve has equation y = x^3 - x^2 - 5x + 7 and the straight line has equation y = x + 7. One point of intersection, B, has coordinates (0, 7). Find the other two points of intersection, A and C.

As both equations are equal to y, we can combine them to create a single equation in terms of x: x^3 - x^2 -5X + 7 = x + 7. Shift the equation so the left hand side is equal to 0 on the right: x^3 - x^2 - 6x...
AB
Answered by Alfie B. • Maths tutor
8006 Views

Briefly outline the divisions and roles of the human nervous system.

The role of the nervous system is to collect, process and respond to information in the environment and to coordinate the workings of organs and cells in the body. It is subdivided into the central nervous s...
SL
Answered by Sammy L. • Psychology tutor
13975 Views

What are material factors and how do they affect educational achievement?

This question needs to be broken down in to two elements; 1 st what is material capital and what are examples of material capital 2 nd what is educational achievement and how can this be shown in schools. To...
ER
Answered by Emily R. • Sociology tutor
13626 Views