Ling made a study chart for science class. Which organelle accurately completes the chart? lysosome cell wall vacuole endoplasmic reticulum

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

If a checkpoint detects damaged dna, the checkpoint may