Question

a newly mated queen ant establishes an ant nest in an unoccupied patch of suitable habitat. the population of the nest grows quickly at first, then levels off at carrying capacity. which of the following types of curve will best describe its population growth?
linear
logistic
exponential
if an ecosystem has a carrying capacity of 1,000 individuals for a given species, and 2,000 individuals of that species are present, we can predict that the population
size will remain at equilibrium.
size will decrease
size will slowly increase
the death by bubonic plague of about one - third of europes population during the fourteenth century is a good example of
abiotic factors limiting population size.
density dependent effect
density independent effect
the bullfrog lays hundreds of eggs that are fertilized. only a small percentage of these eggs will reach reproductive age. this is an example of

Explanation:

• First question: Logistic growth curve has an initial rapid growth phase (like the ant nest population growing quickly at first) and then levels off at the carrying capacity (as described in the problem). Linear growth is a constant - rate straight - line growth, and exponential growth has no leveling - off at a carrying capacity.
• Second question: Carrying capacity is the maximum number of individuals an ecosystem can support. If the population (2000) is above the carrying capacity (1000), there will be a lack of resources (food, space etc.), leading to an increase in mortality, emigration, or a decrease in natality. So the population size will decrease.
• Third question: Bubonic plague is a density - dependent factor. Density - dependent factors have a greater impact when the population density is high. In a crowded population (Europe's population at that time), the spread of the plague (a biotic factor, as it is caused by a pathogen) is more likely. Abiotic factors are non - living (e.g., temperature, water availability). Density - independent factors affect populations regardless of density (e.g., natural disasters like earthquakes).

Answer:

1. logistic
2. size will decrease
3. density dependent effect