What household object could represent the nucleolus of an animal cell?

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is

In a cladogram, what occurs at a node? a derived trait appears. evolution is stopped. an ancestor dies. the cladogram ends. aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?