A. the magnitude of an earthquake
Univalves are one shell or shell having one piece
bivalves contain two shells
One example of a mutation that could occur in a species that might increase its lifespan is increased bone density. With high bone density, an animal is more likely to survive a heavy hit with no bone damage. This, in turn, means that the animal's vital organs are able to be protected by the bones, meaning the difference between life and death.
Answer:
Agriculture is the mainstay of the economy, providing a livelihood for more than 70% of the population and accounting for a little over one-third of GDP,” according to the CIA. “Industrial activity mainly involves the processing of agricultural products, including pulses, jute, sugarcane, tobacco, and grain.
