No student devices needed. Know more
15 questions
Which of the following describes a population?
the wild dogs and cats that live in the city
four different species of fish living in a pond
a group of Canadian Geese living in a pond in Ijams
roses and sun flowers in a garden
Speciation can occur as a result of geographic isolation because _________.
members of a species can no longer find mates
populations that live in different environments may be exposed to different selection pressures
exchange of genes during recombination
movement of genes within a population because of interbreeding
The dolphin and the shark are similar because they have
Both adapted to a marine (ocean) environment and they both have a similar body shape but they do not share a recent common ancestor. This is known as ___________.
coevolution
ancestral breeding
artificial selection
convergent evolution
These structures exist in the body but are no longer needed. Examples include wisdom teeth and the appendix.
Vestigial
Homologous
Niche
Analogous
This zone has few organisms where the temperature is either too low or too high. The old and weak fish die in this zone.
Zone of Physiological Stress
Zone of Intolerance
Zone of Optimum Range
Zone of Invalidity
Which type of population growth is shown in this graph?
Exponential growth
Logistic growth
Logarithmic growth
Linear Growth
Which of the following is NOT a density dependent factor?
Disease
Predation
Limited Resources (food, water, etc.)
Hurricanes
This is when one species is separated by a geographic barrier. Over a long period of time, they will become two different species. This happened to the common ancestor of the chimpanzees and bonobos.
Convergent speciation
Divergent speciation (allopatric speciation)
Lateral speciation
Parapatric speciation
These adaptations include migration, marking territory, flight or fight responses, etc.
Physiological
Behavioral
Physical
This level of ecological organization includes BOTH abiotic and biotic factors such as animals and water.
Population
Community
Organism
Ecosystem
Songbirds like Eastern Towhees defending territories from which they exclude their neighbors in an effort to secure resources and mating opportunities. Which type of competition is this?
Intraspecific
Interspecific
Xenospecific
Intensive
Prehensile tails (tails used as an extra appendage) evolved in a number of unrelated species such as the opossum, new world monkeys, rats, skinks, chameleons, and pangolins. Which type of speciation is this an example of?
Convergent
Divergent
Transverse
Sympatric
The modern day dog or head of corn is an example of this type of selection.
Artificial Selection
Natural Selection
Evolution through resistance
Explore all questions with a free account