Answer:
With sufficient stimulation, mature sperm travel from the epididymis through the vas deferens, a muscular tube, which propels sperm forward ...
Explanation:
B! The strongest characteristics will survive when the weak ones won't
D) Natural Gas i think is correct sorry if im wrong
Answer:
Solar Energy
The sun radiates solar energy to the earth and it is used for other things.
The answer is C. The symbiotic relationship has evolved for so many years such that the two are obligate symbiotes and cannot function normally without the other. Chloroplast and mitochondria are believed to have been once free-living bacteria according to endosymbiosis theory.
