B
It’s kinda hard to explain but in B. D is directly linked ( shown by the line) to C unlike in the other options
I hope this was helpful
Answer:
The correct answer is - Africa.
Explanation:
Scientists found the fossils of modern humans called Mota an ancient man who lived around 40000 to 45000 years ago in Ethiopia. It was the first DNA isolated from Africa.
This DNA sample says that the Europeans have 6% of the DNA of this modern human, which suggests that there was substantial migration of people into Africa from Europe and the middle east by water crossings.
The correct answer is Stimulus.
A thing or an event that provokes a specific functional response in an organ or tissue of an organism is called as stimulus. It can be anything like heat, light, water, chemical et cetera. Any stimulus when encountered by the organism produces response in reference with the stimulus generated by the external environment or other organism.
There are no examples, i'd love to answer it, but you have to either upload the examples or a picture of them