Answer:
The bone has broken and either severed or blocked the blood vessels
Explanation:
I am going to go with either C,A B.
I'm not entirely sure. it's just what i think
I think the answer would be A , break the darkness period with a flash of light for some time so that the plants can bloom all year round.
Cytoplasm. This photo should help explain it!
Fixation
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants. Recently fixed ammonia is then converted to biologically useful forms by specialized bacteria
