Answer:
Gene, a part of DNA that determines the trait of individual characteristics
Explanation:
I think it’s B
Hope that’s right
Answer:

Explanation:
The distance to the Sun is 5,890,000,000,000. We need to write this distance in km.
A number can be written as
in scientific notation where x is a real no and y is any integer.
There are 10 zeros in the given number and also there are 12 digits after. It would mean that,

So, the distance in scientific notation is : 
Answer:
The heart is either superior to the urinary bladder or midline, but I’d go with superior.
Good luck!