-it transports nutrients in the body
-it circulates macrophage in the body
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.
Scientific study of life( its structure,processes,etc)
Stimulus: You get an injury.
Response: Your body begins to heal and recover.
