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Unit 2 Lesson 1

TermDefinition
chromosome structures in nucleus of the cell that controls the cell's activities
chromosomes are copied First, the cell copies its chromosomes. It makes two complete sets one for each cell.
chromosomes line up The two sets of chromosomes line up in the center of the cell.
chromosomes separate Then, the two sets of the chromosomes separate. Each set moves toward an opposite side of cell.
cell divides Finally, the cytoplasm divides, forming two new cells.
fertilization the joining of a sperm cell and an egg cell.
fertilized egg the cell that results when an egg cell and a sperm cell unite.
one-cell reproduction (ameba) cell divides and produces two new "offspring" cells
many-celled reproduction cells keep dividing and stay together in a growing organism
pollination movement of pollen from stamen to a pistol
What carries pollen? bees and wind
pollen tube grows down from pollen grains to ovule where sperm cells fertilize egg
Created by: Sra_Anthony_Home
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