The BVD stands for Back Vertex Distance, this is a measurement that is included on any prescription where the sphere or cylinder powers are higher than + or - 5.00D and to a lesser extent some prescriptions where it is less than this power.
Winged Drone | Alate | Male Ant. Drones are the only male ants in a colony. They are born from un-fertilized eggs. Drones are not like typical ants. They donât do any work in their nests, and they look more like wasps than ants. They are reproductive winged ants and so are alates.
A group of ants is called a colony, or sometimes an army. Ants are a social insect, and live in large groups that have one 'queen' ant, and many 'worker' ants that are responsible for foraging for food, as well as caring for the queen and her offspring.f you have ants in your home or place of business, you can save money on our pest control services with our coupon. âBye Bye Ants :)) love this company. I switched from another company and I am so happy that I did :) they are very knowledgeable and the employees are so friendly!!!! â.