Answer:
Abiotic is basically a non living factor so the answer is
D. Sunlight, temperature , conductivity, dissolved oxygen.
All other options contain one biotic or living factor like algae, star fish and crabs these aren't Abiotic.
It is called it's "Relaxation Period" and actually it is the <span>time during which tension is removed from the </span>muscle.
In short, Your Answer would be Option A
Hope this helps!
Answer:
A
Explanation:
I stuided this last year and what I found out was the nerves send a message to the brain and I forgot why the spinal cord is in there but I just know it is.