It is only active at a pH of around 2 because that is around the same pH as the gastric juices in the stomach which is where pepsin is used to break down proteins.
Answer:
The precambrian would finish in mid-november, the paleozoic would end in mid-december, humans would show up at the end of December.
Explanation:
The precambrian period is the longest period in terms of earth's formation and development of several species. The paleozoic (belongs to the cambrian period) is a continuation of the previous era with other species that devedloped in the seas. Human evolution is actually short and brief in terms of prehistoric geological registry, as humans appeared much more towards the end in earth's prehistoric registry (the end of the cenozoic).
D. Since first you think of what will happen if this and this happen and then you test it.
The corpse flower uses putrid fragrance to attract pollinators, and typically only in bloom once every six years is a true statement.
What is Corpse flower?
This is the type of flower which has a stinking smell which attracts pollinators such as flies to them.
This flower blooms once in every six to nine years thereby making it the most appropriate choice.
Read more about Corpse flower here brainly.com/question/10426601
#SPJ4