1 Identify a fossil as a gastropod or bivalve, and be able to identify bivalves to the order level using the chart provided. 2  Be able to identify the probable life habit of a gastropod or bivalve. 3  Know the skeletal structure and material of each of these animals.uestions. 1. #1739 - This mesogastropod is in the family Natacidae, the moon snails. These snails are predators, catching bivalves and drilling holes through the shell, then digesting the contents. Look carefully at the natacid and its prey, and conclude whether this snail is epifaunal or infaunal.
How Much Does A DNR Officer Make Per Year? Average DNR Officer Salary? A DNR officer can make $45,000 to $57,000 in a year. Experience is an important deciding factor for the salary of a DNR officer. As the raise is made only by qualifications and hours of service, a DNR officer can get promoted and make a lot more money every single year.
Police Officer Salary. The average annual salary of a police officer as of May 2010 was $55,620 per year, or $26.74 per hour, according to the Bureau of Labor Statistics. The 10th percentile made up to $31,700 per year, or $15.74 per hour, and the 25th percentile made up to $40,830 per year, or $19.63 per hour.