Variation is differences between individuals of the same species

There are two types of variation 

1) Genetic/Natural variation 
2) Envionmental variation 

Examples of genetic variation include: 
-Eye colour
-Skin colour
-Blood group
-Inherited disorders


Examples of environmental variation is as follows:
-Weather
-Diet
-Location in the world 


The differences between individuals of the same species. This can be divided into a few areas. 

 Genetic variation; this is the differences in the genes, and so DNA/RNA, between individuals of the same species, and is often caused by mutations in the DNA/RNA when the gametes (sperm and eggs cells in most cases you will look at) are copied, or the DNA/RNA is copied prior to cell division in other species. 

Phenotypic variation. Variation in the visible (expressed) features. 

Environmental variation; variation caused by the environment, although the line between environmental causes and genetics are often difficult to separate. For example, if a population of humans is overweight is that a genetic cause or is that learned behaviour. The answer seems to be both. 

Secondary

Biology

What is variation in biology?

You subtract the V from both sides to get - 
X=W-V

Bring V over = (it'll now be -V)

So now X is the subject 

ANSWER: X=W-V

GCSE

Maths

Make x the subject v+x=w?

I'm assuming this is 3n-2=0
So first move add 2 to both sides, 3n=2
Then you want to divide both sides by 3, leaving you with n=2/3

Can you please write the full question?



3n-2?

There are 60 minutes in an hour. So, 60x2=120 minutes 

1 hour   = 60 minutes
(X2)            (X2)
2 hours = 120 minutes 

Primary

2 hours in minutes?

10th term of n² - 3 means we need to replace the 'n' with 10. 

10² is 100

100 - 3 

answer = 97 



The 10th term will be: 

10^2=100

100-3

=97

10th term of n^2-3?

Welcome to the Aslam Way - making maths simple 

Original value = £2000 = 100%
Interest is 3%, so new percentage value is 100% + 3% = 103% 
Change to decimal 
103/100 = 1.03 (this is your multiplier) 
For 5 years 
1.03^5 
So £2000 x 1.03^5 
= £2,318.5481486
Money is rounded to 2dp 
Final answer= £2318.55

There is a formula we can put the number in:

Initial amount (1 interest rate/100)^number of days/years/etc 

2000 (1+ 3/100)^5

2000 (1+ 0.03)^5

= 2318.548

Now round the number off:

Your answer is £2318.55



If £2000 is placed into a bank account that pays 3% compound interest per year, how much will be in the account after 5 years?

If the subject has a lot of detailed content to cover, I find that creating a mind map is very useful. It helps organise your information and also condense it all onto one page. This may relieve you when you see you can fit it all into one space and seem less overwhelming :)

Hi Anuva,
One of the best ways of revising is using retrieval practice (testing yourself). You can do this in a number of ways, for example, using flashcards, explaining a topic to a friend/family member and getting them to ask you more questions, using past papers, taking quizzes on websites such as Quizlet or Seneca. 
Are you able to share which subjects you’re studying for so that I can provide further suggestions?
Best of luck with your assessments. 🙂

One acronym you might find beneficial to follow:

R ~ Revise ALL notes thoroughly 

M ~ Memorise key points 

Q ~ Questions! Don't be afraid to ask question on points you're unsure about or find really challenging. 

Stay organised by making timetables and planning how you will allocate your time in preperation for assesments.
Use this allocated time to make resources that you can reuse such as flashcards.
Audio notes can be useful, as they can be used again and again, and then test yourself on these notes.
Revisiting past papers can be very useful also and give you a better idea of what might come up on your assesment.

Khadijah Naeem

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Khadijah Naeem