New Generation IV nuclear plants such as the pebble-bed nuclear reactor features
A) a combination of nuclear fusion and fission in a single design.
B) cooling with liquid helium, smaller scale and less nuclear fuel in the reaction chamber.
C) a design that uses a mechanical source of X-rays for power.
D) designs based on the Fukushima Daiichi plant in Japan.
Question 2
The natural modes of nitrogen fixation are
A) various industrial processes of making fertilizers.
B) fossil fuel combustion.
C) lightning and bacterial fixation in soils.
D) denitrification and various industrial processes.
Plastid composition of egg cells from green, white, and variegated four-o'clock plants.
The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in
Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants.
Surface Features on Titan
A Punnett square can be used to derive the F2 ratios in a cross from the F1 generation.