How is oxygen extracted from the air and transported to the tissues with such efficiency in large whales?

If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion