What has research taught us about sexual orientation? (write 800 words please)

Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above

There are multiple lines of evidence that provide support for common ancestry and evolution. write 3-4 paragraphs describing at least three of them in detail. provide at least one example for each line of evidence.

This is the interaction of two organisms where one is and the other is neither nor harmed.