2. Which of the following best describes the genetic material a person receives from his or her father? - 22 pairs of homologous chromosomes and an X and Y chromosome

- 22 haploid cells and an X or Y chromosome

- 23 diploid cells and an X and Y chromosome

- 22 autosomes and an X or Y chromosome

Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Harold makes a venn diagram to him compare and contrast mitosis and meiosis. which label belongs in the region marked z? forms diploid cells creates an even number of cells includes two rounds of cell division duplicates body cells