Top answers

How is the lung adapted for gas exchange?

Large surface area: Branches off, starting with bronchioles until microscopic in size with air filled sacs called alveoli. The alveoli also have massive capiliary networks surrounding them so there is a big ...
MK
Answered by Miss K. • Biology tutor
3855 Views

Why were Jewish ghettos set up in Nazi occupied territories 1939-41?

Ghettos were established in Poland in 1940/41 for a multitude of reasons. Millions more Jews came under German control after the invasions of Poland and the Soviet Union. Nazi ideology, specifically antisemi...
AS
Answered by Amber S. • History tutor
2790 Views

Find the gradient of the curve (x^3)-4(y^2)=12xy at the point P(-8,8)

First of all differentiate the equation of the curve implicitly, giving: 3x 2 -8y(dy/dx)=12y+12x(dy/dx) => (dy/dx)(12x+8y)=3x 2 -12y => dy/dx=(3x 2 -12y)/(12x+8y) As dy/dx is the gradient of the curve,...
FG
4862 Views

What is glycolysis?

Glycolysis is the process by which cells create ATP from glucose. It occurs in all cells. Glycolysis is an anaerobic process, which, means it may occur even without oxygen. Glucose is converted to 2 molecule...
VT
Answered by Vittoria T. • Biology tutor
7900 Views

How do I know the gender of nouns in German?

There are not really any rules for the gender of nouns in German. That means you have to learn the article ('der', 'die, 'das') with every new noun you learn. You will get a sense for the gender of words aft...
LF
Answered by Lukas F. • German tutor
2147 Views