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In which ways are the lungs adapted for efficient gas exchange?

There are three main ways in which the lungs are adapted for efficient gas exchange. These are: the fact that structures in the lungs called alveoli provide a large surface area for gas exchange. Also, th...

Answered by Holly M. • Biology tutor

4405 Views

How do you know whether a compound is ionic or covalent and how can you find the conductivity rate for both heat and electricity?

As a general rule metals bind to non-metals ionically, and non-metals to non-metals bind covalently. For example NH3 is covalent, vs NaCl is ionic. Conductivity rates for electricity are in general depend...

Answered by Roshan S. • Chemistry tutor

2448 Views

How do you know when to use the verb 'être' or 'avoir' in French?

The verb avoir (have) is conjugated in the present tense. 'Avoir' is used when the 'subject' (sujet) 'owns' (has) something or someone.
Example: I have a pe...

Answered by Samy N. • French tutor

1516 Views

How should I go about answering the ELAT?

The structure of the ELAT exam is very different from the A Level exam. The ELAT exam gives you a great deal of freedom, and the passages included, whilst being centred on a single theme, will be very var...

Answered by Jason M. • ELAT tutor

2192 Views

What are the two types of conditioning that make up the Learning Approach?

The learning approach, also known as the behaviourist approach, is one of the most well-known phenomenon's in Psychology. Behaviourists argue that we are all born with a blank slate, and therefore all beh...

Answered by Sophie W. • Psychology tutor

3107 Views