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.
Your answer is b Changes in the tempurature and salinity of water
The answer is D: poaching, since it harms wildlife and destroys ecosystems.
<span>42. There are 206 bones in the human body. The axial skeleton comprises of 80 bones and the remaining 126 bones make up the appendicular skeleton. These bones are unfused. The appendicular skeleton (or appendages) can be further divided into six major regions.</span>
Ventilation is the act of moving/pushing air into and out of the lungs.
