Read each of the sentences that describe a phase of meiosis. Place each sentence into the correct box. Crossing-over may occur between the non-sister chromatids. returned to choices list. Homologous chromosomes pair to form a tetrad. Crossing-over may occur between the non-sister chromatids. Homologous chromosomes line up at the center of the cell. Homologous pairs separate and move towards opposite ends of the cell. A nuclear membrane forms and cytokinesis follows. The haploid number of duplicated chromosomes line up at the metaphase plate. Sister chromatids separate and become daughter chromosomes that move to the poles. Four haploid daughter cells are formed that are not genetically identical. Prophase I

Metaphase I

Anaphase and Telophase I

Meiosis II

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."