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Explain the structure of the heart and relate the structure to its function

In the heart there are 4 chambers; the upper 2 chambers are called the atria and the bottom two chambers are called the ventricles. The right and the left side of the heart are separated by the interventricu...
AC
Answered by Anna C. • Biology tutor
13320 Views

Do plants undergo photosynthesis or respiration?

That depends on whether there is light available. Plants are always respiring, day and night, as it provides them with the energy (in the form of ATP) required to survive. During the day however, when there ...
MS
Answered by Mikhaaeel S. • Biology tutor
3278 Views

Solve the differential equation (1 + x^2)dy/dx = x tan(y)

Firstly rearrange the equation so that only dy/dx is on the left hand side dy/dx = (x/(1+x^2)) tan(y) Now separate the variables such that the x terms are on one side with the dx, and the y terms are on the ...
CG
Answered by Christian G. • Maths tutor
6853 Views

With respect to their balanced equations, explain the difference between photosynthesis and respiration.

Respiration uses 'food' in the form of glucose with oxygen to store (never create) energy in the form of ATP, along with CO2 and H2O. Photosynthesis uses energy from light with CO2 and H2O to create/store en...
MS
Answered by Mikhaaeel S. • Biology tutor
3998 Views

168 is 4/7 of a number. What is the number?

If 168 is four sevenths of a number then divide this by 4 to give 1 seventh of the number. 168/4 = 42 So 42 is one seventh of the number. Now multiply this by 7 to find the number. 42*7 = 294
WL
Answered by William L. • Maths tutor
5964 Views