B. The oldest crust is closest to the mid-ocean ridge.
D-cartilage
Cartilages are soft connective tissues which provide flexibility to certain organs. You can feel it by touching you ear pinna that it is hard and flexible but not fleshy.
Hope I answered the question .
Meiosis produces haploid cells rather than diploid cells because they need to make gametes (egg, and sperm cell) for reproduction.
<span>Smallest to largest is--
millimeter (0.001m)
decimeter (0.01m)
centimeter(0.1m)
meter (1m)
dekameter (10m)
hectometer (100m)
kilometer (1000m)</span>
