Most likely d because they have the most concentrated population.
If my memory serves me well, the most suitable from given above is:
a) testes → epididymis → vas deferens → urethra
Answer:
Yes
Explanation:
They are all animals no matter what species
The answer for this question is B
Answer;
Simple diffusion does not require energy.
Explanation;
Passive transport is a type of transport that does not require energy since it lets diffusion move molecules only down their concentration gradient.
Simple diffusion, osmosis, and facilitated diffusion are examples of passive transport.