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Describe and explain the function of the loop of henle and suggest how its structure may differ in organisms adapted to a desiccated environment.

The loop of henle is a region of the kidney's nephrons which through active and passive transport of Na+ and Cl- ions lowers the water potential of the kidney's medulla, allowing greater reabsorbtion of w...

TH
Answered by Theo H. Biology tutor
27132 Views

Find the integral of e^3x/(1+e^x) using the substitution of u=1+e^x

Differentiate U with respect to x to find dx in terms of du and substitute into the integral so that it is in terms of du, then using e^3x = (e^x)^3 and u = 1+e^x subsitute u in for x and simplify the int...

CF
Answered by Cory F. Maths tutor
5152 Views

dx/dt = -5x/2, t>=0. Given that x=60 when t=0, solve the differential equation, giving x in terms of t.

dx/dt = -5x/2 to solve this we must firstly separate the variables ∫2/x dx = -∫5 dt then we solve the integrals using basic integration formulae 2ln...

KS
Answered by Kulveer S. Maths tutor
5907 Views

Describe the stylistic features of Partita No. 4 in D, BWV 828: Sarabande and Gigue by Bach which show that this music was composed in the Baroque period.

The stylistic features relating to genre, tonality, harmony, texture, melody and structure show that this work by Bach is from the Baroque period. Firstly, both the Sarabande and Gigue were dances that ve...

AM
Answered by Adam M. Music tutor
4215 Views

What is natural selection?

Natural selection is one of the fundamental mechanisms of the process of evolution. There are 4 key things to remember about the process of natural selection.1) There is genetic variation within a populat...

EE
Answered by Eva E. Biology tutor
3405 Views

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