Top answers

Biology
All levels

What are the best strategies/ ways of helping me revise?

- Running through past exam papers

- Reading, memorising, and re-writing

- Taking regular breaks

GH
Answered by Georgina H. • Biology tutor
3890 Views

Explain how smoking can increase blood pressure?

There are two main reasons that smoking can increase blood pressure:

  1. Cigarette smoke contains nicotine which, once inhaled, can enter the bloodstream and cause the release of ...
OH
Answered by Oliver H. • Biology tutor
7956 Views

How do fish carry out gas exchange efficiently?

Fish use specialised surfaces called gills to carry out gas exchange.

Gills are highly folded, giving them a large surface area and maximising the efficiency of gas exchange.  The gill fi...

SB
Answered by Shoam B. • Biology tutor
129250 Views

How does speciation occur?

Reproductive separation occurs, this could be through geographical separation. (1)

Therefore no interbreeding in the population. (2)

SB
Answered by Shoam B. • Biology tutor
6439 Views

How does a neuron maintain its resting potential and why is it important?

The membrane of an axon contains a large number of protein channels along its length, which all fall under three categories: the sodium/potassium pumps, the voltage-gated sodium channels & the volt...

FB
Answered by Ferdinand B. • Biology tutor
27556 Views

We're here to help

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

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemapTerms & ConditionsPrivacy PolicyGender Pay Gap Reporting

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

MyTutor is part of the IXL family of brands:

IXL

Comprehensive K-12 personalized learning

Rosetta Stone

Immersive learning for 25 languages

Wyzant

Trusted tutors for 300 subjects

Education.com

35,000 worksheets, games, and lesson plans

Vocabulary.com

Adaptive learning for English vocabulary

Emmersion

Fast and accurate language certification

Thesaurus.com

Essential reference for synonyms and antonyms

Dictionary.com

Comprehensive resource for word definitions and usage

SpanishDictionary.com

Spanish-English dictionary, translator, and learning resources

FrenchDictionary.com

French-English dictionary, translator, and learning

Ingles.com

Diccionario ingles-espanol, traductor y sitio de apremdizaje

ABCya

Fun educational games for kids

© 2026 by IXL Learning