Answer:
There are lots of transitional organisms in the fossil record though it does take very specific and precise conditions for a fossil to be preserved, a deer that dies in a field will not end up in the fossil record so we are looking at a small sampling of the evidence (and a good thing too or there wouldn't be anywhere to walk with all the bones laying around)
Explanation:
Red blood cells and lots of blood clots due to plasma and platelets
I found the exercise on the internet and attached are the descriptions.
Actin filaments:
-"play a role in cleavage furrow formation during cell division"
-"function in muscle contraction"
Microtubles:
-"make up the core of cilia and flagella"
-"are composed of tubulin subunits
-"maintain cell shape by resisting compression"
Intermediate filaments:
-"are not involved in cell motility"
-"fix certain organelles in place"
A dependent variable is how they are recording, measuring or keeping track of the science experiment their doing.
A independent variable is the things/types there using to compare what is the most/least affective in the experiment.
A controlled variable is something that stays the same in the experiment or a group/set used for comparison