In the following graph showing a demographic transition model, identify the correct labels from 1 to 5.

When bacteria are grown in a culture medium in a flask, which of the following factors causes the growth rate to slow as it approaches carrying capacity?

How can quadrats be utilized to estimate the population size of a plant species in a large field?

If 50 butterflies are captured, marked, and released, and later 40 butterflies are recaptured with 10 marked individuals, what is the estimated total population size?

Which characteristic is typical of a semelparous organism?

Given the trade-off between high survivorship and high fecundity, why do fruit flies and African bush elephants display different life history strategies?

What is the main purpose of a life table in population studies?