Its accumulation as it moves up the aquatic food chain
First-time moms may not notice movement until closer to 25 weeks, or may not know for sure if what they’re feeling is really a baby. Experienced moms tend to notice sooner.
Try going with →"imply causation"...
The answer is monozygotic twins.
Monozygotic twins refers to the type of twin that derived from one zygote (most people more familiar with the term identical twin)
High siblings correlation implicates that environmental factors (such as social group, wealth, and education) played a huge influence in people's development rather than genetic alone.
C. Is the answer hope this helps