Put the following steps of stomach acid production in the correct order starting with the reaction that requires an enzyme.
1. h2co3 dissociates.
2. chloride ion combines with h+ in the gastric lumen.
3. water and co2 combine to form carbonic acid.
4. h+ and bicarbonate ion are transported into the gastric lumen.
5. cl- diffuses into the gastric lumen.
a) 3, 1, 2, 5, 4
b) 1, 3, 5, 2, 4
c) 4, 5, 3, 1, 2
d) 4, 5, 1, 2, 3
e) 3, 1, 4, 5, 2

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e.g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups