Which two of the following methods were first introduced to slow decay? drying refrigeration canning salting pick or than one

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.

Which of the following terms describes all of the non-living components of an ecosystem

If the charge that enters each meter of the axon gets distributed uniformly along it. true or false