Ib Bio Hl Chap 1 Cell Essay example
Which of the following will contribute to the cell theory? I. II. III. A. B. C. D. I only II only I and III only I, II and III
Living organisms are composed of cells. All cells come from pre-existing cells by mitosis. Cells are the smallest units of life.
A red blood cell is 8 μm in diameter. If drawn 100 times larger than its actual size, what diameter will the drawing be in mm? A. B. C. D. 0.08 mm 0.8 mm 8 mm 80 mm
A cell has cytoplasm, a cell wall, naked DNA and ribosomes. Based on this information, what type of cell could this be? A. B. C. D. A cell from a pine tree A grasshopper cell A human red blood cell A bacterium
What do diffusion and osmosis have …show more content…
IB BANK BIO VERSION 3
MUHD INAAMULHASAN BIN SATHAR MOHD 2012-2014
State the relationship between (i) latitude and the frequency of the PanIA allele. greatest/great frequencies of PanIA at lowest/low latitudes / a rapid drop in frequency at (60–65 degrees latitude) / lowest/low frequencies at highest/high latitudes Answers which describe/imply the correct step-wise relationship should get credit. Answers stating or implying a negative correlation alone should not get credit. mean surface sea temperature in June and the frequency of the PanIA allele. lowest/low frequencies of PanIA at lowest/low temperatures / a rapid increase in frequency at (8–10 degrees Celsius) / highest/high frequencies at warmest/warm temperatures Answers which describe/imply the correct step-wise relationship should get credit. Answers stating or implying a negative correlation alone should not get credit.
Suggest how natural selection could have caused the relationships shown in the graphs.
(d) (cod with) PanIA allele selected/favoured/better adapted to warmer water; (cod with) PanIB allele selected/favoured/better adapted to colder water; cod that survive can reproduce