Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Lab reveals maggot slime cellular invasion
S10E24
·
The Green Death Part 4
To
Scientists uncover mutated larvae origins
S10E24
·
The Green Death Part 4
Why These Connect
The narrative assertion
"The Doctor and Jones's microscopic analysis of the maggot's slime (source) reveals its ability to transform human cells, which directly informs the discovery that the maggots are mutated larvae seeking daylight due to oil waste contamination (target)."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.