How are different species formed?

For a new species to form, first 2 groups of animals or plants must become physically spearated to form 2 different groups.

Each group will have genetic variation within the group meaning that there is a wide range of alleles to control the characteristics of the individuals in the group.

some of these alleles will be advantageous and help the individuals with these alleles survive. Therefore, thse individuals will be able to reproduce and pass on these alleles to their offspring. This is called natural selection.

Over many years, the 2 different groups will select for different alleles and so become so genetically different that they will no longer be able to interbreed with each other and so are now separate species.

Susannah R. A Level Biology tutor, GCSE Biology tutor, Mentoring -Per...

1 month ago

Answered by Susannah, a GCSE Biology tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist


Eleanor B. A Level Biology tutor, GCSE Maths tutor, GCSE Biology tuto...
View profile
£18 /hr

Eleanor B.

Degree: Zoology (Bachelors) - Bristol University

Subjects offered: Biology, Music+ 2 more


“I am currently studying Zoology at the University of Bristol. I have a younger brother who took his GCSE's last year, and I helped him with revision, which made me realise that I really enjoy teaching! I hope that through these sessio...”

Emily C. Mentoring -Medical School Preparation- tutor, Mentoring -Per...
View profile
£18 /hr

Emily C.

Degree: Medicine (BMBS) and Biomedical Sciences (BMedSci) (Bachelors) - Nottingham University

Subjects offered: Biology, Human Biology+ 3 more

Human Biology
-Personal Statements-
-Medical School Preparation-

“Who am I?Hi everyone! My name is Emily and I am in my final years studying medicine at the University of Nottingham. As a student doctor, teaching is part of the job and I have always had a real enthusiasm for it. I have often helped...”

Janis R. A Level Dutch tutor, GCSE Dutch tutor, A Level English and W...
View profile
£18 /hr

Janis R.

Degree: Politics and International Relations (Bachelors) - Bath University

Subjects offered: Biology, Politics+ 8 more

Government and Politics
English and World Literature
English Literature
-Personal Statements-

“About me: I am a Politics and International student at the University of Bath. Before university I attended an international school where I was expected to study many subjects in different foreign languages, for this reason I have dev...”

MyTutor guarantee

About the author

Susannah R. A Level Biology tutor, GCSE Biology tutor, Mentoring -Per...
View profile
£18 /hr

Susannah R.

Degree: Veterinary Medicine (Bachelors) - Bristol University

Subjects offered: Biology, -Personal Statements-

-Personal Statements-

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Posts by Susannah

How are different species formed?

What is an enzyme? And what things can affect them?

Other GCSE Biology questions

Describe the role of blood vessels in the control of body temperature.

Why is the overuse of antibiotics dangerous?

What is Natural Selection?

What is diffusion? (GSCE: OCR, Edexcel, AQA)

View GCSE Biology tutors


We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss