<span>I think the right answer is A</span>
The mantle being made of nickel and iron is the correct statement about the geosphere and is denoted as option B.
<h3>What is Geosphere?</h3>
This is referred to the solid part of the earth and consists of rocky materials present in it.
The geosphere has the mantle which is made up of materials such as iron and nickel which are metals and are responsible for their rigid solid structure thereby ,making it the most appropriate choice.
Read more about Geosphere here brainly.com/question/842883
#SPJ1
I think the answer is renal medullae
Note that Facilitated diffusion , Active transport and Osmosis are three different ways of transporting substances across the cell surface membrane.
Facilitated diffusion is the movement of a substance from high to low concentration , similar to simple diffusion , but due to the complexity of the cell surface membrane , polar molecules and ions cannot just pass like that , so they pass through specific carrier and channel proteins in the cell surface membrane and so we call it facilitated diffusion.
For Active transport , it's the movement from low to high concentraion using energy from ATP
For Osmosis , it's totally different . You only name osmosis when its all about water . Its the net movement of water from high water potential to low water potential through partially permeable membrane .
If you're doing AS , you'll be familiar with Endosmosis and Exosmosis.
Bacteria cells have no nuclei.
hope this helps :)
