BIO 181 Unit 2

The biological species concept is inadequate for grouping:

• Plants

• Parasites

• Asexual organisms

• Animals that migrate

• Sympatric populations

As two populations are becoming increasingly different, the area of overlap decreases as does interbreeding. However, if there continues to be interbreeding in the overlapping zone, we can assume that this is:

• The hybrid zone

• convergent evolution

• genetic drift

• intersexual selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

A pack of wolves chase down a rabbit, and the wolves in the pack fight over who gets to eat first. Which type of animal relationship are they exhibiting?

• interspecific interference competition

• intraspecific interference competition

• intraspecific resource competition

• interspecific resource competition

• resource partitioning

When multiple species of Darwin's finches co-occur on an island, they show differences in bill depth (and eat different sized seeds) compared to when they are alone on an island. This best describes an example of:

• competitive exclusion

• fundamental vs. realized niches

• character displacement

• resource partitioning

• intraspecific resource competition

Tags

NGSS.MS-LS2-2

A defining characteristic of allopatric speciation is:

• Geographic isolation

• Utilization of part of a habitat in a new and unique manner

• Asexually reproducing populations

• The appearance of new species in the midst of old ones

Which of the following is an example of a density-independent effect on population growth?

• A disease outbreak

• Increased predation

• A sudden volcano eruption

• Increased competition

Tags

NGSS.HS-LS4-5

Which of the following countries exceed the world average ecological footprint?

• Japan

• Brazil

• Germany

• Canada

Tags

NGSS.HS-LS2-7

An ecological niche is best defined as:

• An organism’s use of the abiotic and biotic resources in its environment

• An organism’s response to competition

• Patchily distributed areas that have optimal and suboptimal locations

• where the organism lives

Exponential growth is seen in which of the following situations?

• Reintroduction of a species to a habitat

• In r-selected species

• Recovery of a species from overhunting

• Species not affected by density-dependent factors

Based on the intermediate disturbance hypothesis, some communities’ species diversity is increased by:

• Moderate levels of disturbance

• Stable conditions with no disturbance

• Human intervention to eliminate disturbance

• Frequent massive disturbance