Top answers

All subjects
A Level

Outline the concept of eustatic and isostatic sea level change

Eustatic change refers to a global change in sea level due to an actual rise or fall in sea level. As global temperatures rise due to global warming more precipitation falls as rain and more ice melts fro...

Answered by Geography tutor
6694 Views

Explain what the rate-determining step in a reaction is with reference to activation energy.

The rate determining step is the slowest step in a multi-step reaction, and it is the step in the reaction with the highest activation energy. It is the step in the reaction which decides the overall rate...

SA
Answered by Sammy A. Chemistry tutor
2935 Views

Outline how light intensity affects the rate of photosynthesis, with reference to the Calvin cycle and effects on the concentrations of GP, GALP and RuBP.

Light is needed to provide energy for the light dependent reactions of photosynthesis. A greater light intensity will provide more energy for these reactions to occur. At a low light intensity, the produc...

SA
Answered by Sammy A. Biology tutor
9316 Views

What is the difference between the primary and secondary immune responses? (May be asked in the form of how to interpret a commonly used graph on the subject)

In a primary immune response the active immune system must first recognise the pathogen via B-lymphocyte cells with antibodies on their surface that are complementary to the antigens of the invading path...

Answered by Biology tutor
4770 Views

To what extent does Virgil glorify war in Aeneid 10? (20 marker)

In the Aeneid, Virgil presents a dichotomy in his depiction of war; it seems simultaneously a source of glorious heroism, and of barbaric death and suffering. The Aeneid is a reinterpretation of Homer, an...

Answered by Latin tutor
9938 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning