APES 3.1-3.5 multiple choice questions

Which of the following graphs best displays population size over time of an rr-selected species that has just colonized a new habitat with abundant resources?

A- graph with population size going up (like a j curve)

Certain lizards display a survivorship curve where the chance of survival is independent of age. Which line on the graph best depicts the survivorship of these lizards?

C

Directions: Select the choice that best fits each statement. The following questions(s) refer to the lettered points of the curves plotted on the graph below. The curves show two possible patterns of change in population size over time for a certain species of small mammal in an ecosystem.

D

Which graph best illustrates a population that was growing and has reached its carrying capacity?

E

Based on the data in the graph, which environmental factor would have most likely lead to the change in the harbor seal population size from 1980-1990 ?

Increased availability of food

Based on the data in the graph, which of the following best identifies the reproductive strategy of harbor seals?

K-selected

Cycads are gymnosperms that were diverse and abundant during the Mesozoic era. Extant species of cycads share many traits with those from the Mesozoic era. Cycads bear cones, are long-lived with slow growth rates, show late reproductive maturity, and have very few offspring. Based on this description, the cycads are

K-strategists with a Type I survivorship curve.

The tropical rain forests are known to have a large variety of animals. One example is the orchid mantis that is highly camouflaged when standing on a certain species of orchid found in tropical environments. Another species, the tropical cockroach, can live anywhere in the rain forest where it can find water and a food source. Which of the following statements best describes why it is predicted that the orchid mantis will be more affected by global climate change than the tropical cockroach will be?

Orchid mantises tend to be advantaged in habitats that remain constant; the rain forest habitat is likely to shift because of global climate change.

Figure 1 shows the population sizes for the moose population and the wolf population on Isle Royale.

Plants in the area could not support the large population of moose in 1995.

The Chatham Island robin is a small endangered bird found in scrub forests off the coast of New Zealand. The robin is preyed upon by introduced species such as cats and rats. In 1980, the population decreased to only 55 individuals and every individual today is a descendant of a single female. Which of the following is best illustrated in the decline of the Chatham Island robins?

Population bottleneck

Salamanders, ospreys, snapping turtles, and beavers all live in aquatic habitats. Salamanders lay their eggs in small freshwater pools and feed on insects. Osprey habitats include rivers, bays, and swamps and the birds feed on fish and other animals in the water or on land. Snapping turtles live in fresh or brackish water and feed on plants, fish, frogs, and snakes. Beavers build lodges on islands, pond banks, and lake shores and eat a variety of shrubs, grasses, and crops. Based on the information provided above, which of the following species would best be classified as a specialist?

Salamanders

Which of the following species is most likely to be an invasive species if introduced into a favorable new habitat?

Species Number of Fertilized Eggs Produced per Year Oyster 5,000,000,000 B

The graph below shows three different survivorship curves A certain species of dinosaur laid large numbers of eggs, and the hatchlings had high mortality early in life. But if they survived, the young dinosaurs were able to grow at a rapid pace and disperse into the environment in order to thrive. Based on this information and the graph above, which of the following best characterizes this species of dinosaur?

The dinosaurs were r-strategists and exhibited a Type III survivorship curve

In the graph below charting the growth of a population of organisms, the line labeled K represents the...

carrying capacity of the population

The K-selection reproductive strategy maximizes survival of offspring by producing

few offspring with high levels of parental care

Members of an r-selected species characteristically

reach sexual maturity quickly

Scientists are closely monitoring caribou populations to examine the effect of global climate change on habitat. The maximum population size for a herd of caribou based on the amount of habitat was 500,000500,000. A herd of caribou currently has a population size of 198,000198,000 caribou as a result of habitat loss. Which of the following methods should be used to determine the percent change between the maximum population and the current population for this herd of caribou?

(198,000caribou−500,000caribou)/500,000caribou×100

Wolves were reintroduced into Yellowstone National Park in 1995. In addition to tracking changes in the wolf population, scientists were interested in how the wolves would affect other parts of the Yellowstone ecosystem. In particular, they were interested in changes to the population of elk, the wolves' primary prey. The graph below shows the population size of the wolf and elk populations over time. Based upon the data presented in the graph, which of the following best identifies the highest wolf population size?

170

Convert Growth rate into percentage 500/1000 births 300/1000 deaths 100/1000 immigrate 100/1000 emmigrate Whats is the growth rate in percent?

20%

Population of Vampire's doubling time 2019 In 2020, there are 100 vampires living in Woodbridge township. They have a stable growth rate of 10%. At this current population and constant growth rate, In what year will the population reach 128,000?

2069

Based on the data in the graph, which of the following is closest to the average population growth rate per year from year 44 to year 77 in the rabbit population? graph

338 rabbits per year

Based on the graph, what is the approximate carrying capacity of the seal population?

7,500

Directions: Select the choice that best fits each statement. The following questions(s) refer to the lettered points of the curves plotted on the graph below. The curves show two possible patterns of change in population size over time for a certain species of small mammal in an ecosystem.

A