Which type of selection leads to increased phenotypic and genetic variation? E
O directional selection
• disruptive selection
stabilizing selection
species selection

Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.

Follow the directions for self-quiz question 8, draw it, by labeling the appropriate structures with these terms, drawing lines or brackets as needed: chromosome (label as replicated or unreplicated), centromere, kinetochore, sister chromatids, nonsister chromatids, homologous pair, homologs, chiasma, sister chromatid, cohesion

Which organelle in a eukaryotic cell is most noticeable under a microscope? nucleus nucleolus ribosome nuclear envelope