Answer:
500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.
Answer:oxygen, carbon, hydrogen, and nitrogen
Explanation: those are the four most important elements in all living thigns
C
Explanation:
Seminal fluid and sperm
no link. sorry I can't help
A this is the definition of homologous
D would analogous
