The passage asserts that Tyrannosaurus rex' s bones have tissues of blood vessels, red blood cells, and collagen matrix and provides three resons of support. The lecturer, on the contrary, repudiates this point ans says that these reasons are skeptical and rebuts all mentioned reasons by the passage.
First, the article claims that Tyrannosaurus rex has some channels inside led bone. The professsor debunks this idea by explaining that channels are not neccessarily remains of tissue. They are remains of colonized bacteria which have left, since they have left organic minerals.
Second, there aresome spheres in the bone which reveals that they are remains of blood cells, since those spheres have color and size of blood cells, according to the reading. The professor disavows this point by saying that these relics are identical properties of other animals in the same area which shows they are not red blood. He also states that these red spheres are remains of redish organic minerals.
Third, the author of the passage imparts that leg bone of Tyrannosaurus rex has collagen which is kind of material included in bone tissue. The lecturer casts doubt on this passae' claim by disapproving that collagen is not belong to Tyrannosaurus rex reasonin gthat they were from an earlier time. He avers that those collagen may have recent source like remins of human' skin whic is from researchers handled Tyrannosaurus rex's bones. 
The passage asserts that Tyrannosaurus  
rex
' s  
bones
 have tissues of  
blood
 vessels, red  
blood
 cells, and collagen matrix and provides three  
resons
 of support. The lecturer,  
on the contrary
, repudiates this point ans says that these reasons are skeptical and rebuts all mentioned reasons by the passage. 
First
, the article claims that Tyrannosaurus  
rex
 has  
some
 channels inside led  
bone
. The  
professsor
 debunks this  
idea
 by explaining that channels are not  
neccessarily
  remains
 of tissue. They are  
remains
 of colonized bacteria which have  
left
, since they have  
left
 organic minerals.
Second, there  
aresome
 spheres in the  
bone
 which reveals that they are  
remains
 of  
blood
 cells, since those spheres have color and size of  
blood
 cells, according to the reading. The professor disavows this point by saying that these relics are identical properties of other animals in the same area which  
shows
 they are not red  
blood
. He  
also
 states that these red spheres are  
remains
 of  
redish
 organic minerals.
Third, the author of the passage imparts that leg  
bone
 of Tyrannosaurus  
rex
 has collagen which is kind of material included in  
bone
 tissue. The lecturer casts doubt on this  
passae
' claim by disapproving that collagen is not  
belong
 to Tyrannosaurus  
rex
  reasonin gthat
 they were from an earlier time. He avers that  
those collagen
 may have recent source like  
remins
 of human' skin  
whic
 is from researchers handled Tyrannosaurus  
rex
's  
bones
.