Question

1. what does the x - axis on the graph represent?
2. which type of organism shows a steady decline at all life stages?
3. which type of organism loses most of their individuals at an early life stage?
4. what survivor type are humans?

Explanation:

1. The x - axis labels are "Newborn", "Pre - reproductive age", "Reproductive age", and "Post - reproductive age", which are different life stages.
2. Type II (Rodents) has a straight - line decline on the graph, indicating a steady decline at all life stages.
3. Type III (Fish, insects, amphibians) shows a sharp decline in the number of survivors at the early life stages (newborn and pre - reproductive age).
4. The graph is labeled "Type I: Human", so humans are Type I.

Answer:

1. Life stages
2. Type II (Rodents)
3. Type III (Fish, insects, amphibians)
4. Type I