Ecology unit 1 Atmospheric nitrogen has to be combined with other elements or fixed in order to be used by plants lighting is one way that nitrogen is fixed when lighting occurs the extreme heat breaks the bonds on nitrogen molecules allowing nitrogen to combine with oxygen and form nitrogen oxides in what way is most of the nitrogen fixed by lighting made available for use by plants

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called