Which two spheres interact when a glacier erodes rock? A. The geosphere and the atmosphere
B. The biosphere and the geosphere
C. The biosphere and the cryosphere
D. The cryosphere and the geosphere

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.