The superficial layer of the uterus, which sloughs off periodically in response to cyclic hormonal changes, is the

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

If a grape were placed in a hypertonic solution what would happen and why?