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.
An anthropoid is a type of invertaber it consists of arachnids, insects, myriapods and crustaceans This answer is WRONG. I think you mean 'arthropod.' Anthropoid is a primatol â¦ ogy term referring to simians, or Old World monkeys and apes.The rest of the digits have nails.) The prosimians' teeth are also different; The incisors are almost horizontal in prosimians, and this is called the grooming comb because they use it to groom.