You have just started brewing beer at home, and your first batch is now ready. you used the yeast saccharomyces cerevisia, which can perform both aerobic cellular respiration and fermentation. when you test the beer, you determine that the alcohol content is almost zero. what could have been present in the fermentation reaction apparatus that caused this problem?
a. oxygenb. carbon dioxidec. pyruvic acidd. glucose

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?

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%