<em>The three parts of the small intestine are :
<u>1 duodenum:
</u>it is the first and shortest part of small intestine...
<u>2 Jejunum:
</u>it is the second part of small intestine...
<u>3 Ileum:
</u>it is the final and longest part of small intestine...</em>
Course adjustment is a type of knob used to focus and bring the object in the microscope.
Option (c);
<u>EXPLANATION: </u>
- There are different powers of Objective lenses on a microscope.
- The shortest lens is of the lowest power and the longest one is of the largest power.
- We start by rotating the objective lens from the lower power and the coarse adjustment knob is used to focus on the object.
- On both sides of the microscope, we can see this knob and it moves the plate (the place where slides are placed for observation) top to bottom and brings the object into focus.
D. Fossil fuels are the remnants of organisms that lived a long time ago and were buried, heated, and formed into hydrocarbons.
An H+ proton gradient created by the ETC (electron transport chain) drives the ATP Synthase to produce ATP by chemiosmosis.
So this is like clown fish how they have the sea Anemone that is symbiosis it has this slime on them kind of like electric conducteors so that they don't get shocked
