Top answers

How can genetically identical twins look different?

There are two key pieces of terminology that it is important to understand with this question; genotype and phenotype . All sexual organisms inherit a mix of genes from their parents. This mix - the genetic ...
JH
Answered by Josh H. • Biology tutor
9226 Views

Is normal expiration, at rest, a passive or active process in a healthy individual? And why?

Expiration is a passive process. It happens due to relaxation, not contraction, of the muscles of the chest. As well as the elastic recoil of the lungs. Both of these processes do not require energy and henc...
SJ
Answered by Samuel J. • Biology tutor
10792 Views

Discuss and analyse a poem

Generally when asked to analyse a poem, students feel overwhelmed and feel at a loss in the face of this 'abstract' challenge that they are asked to do. I think it's very important to establish an empathic c...
SK
2146 Views

Discuss the use of allusion in James Joyce's A Portrait of the Artist as a Young Man

Students are often confronted with the choice between a thematic based and a formal based question in examinations. In my experience of tutoring, students often prefer to tackle the thematic question, believ...
LL
5661 Views

By what process do plants move ions from the soil exterior to the plant, into the root cells of the plant?

Active Transport Normally soil ion concentrations will be low, and high in the root cells. The ions have to move up a concentration gradient and therefore requires an energy-using process to do so.
MT
Answered by Miss T. • Biology tutor
3629 Views