Key definitions Occur – to be encountered or located
Category – a section of a categorization
Continuous – characterized by continuous expansion of space, time, or sequence
Location – a position or location that is occupied, available for occupancy, or identified by a distinctive
feature
Environmental – what one is surrounded with in terms of things, situations, or conditions
Resource – a source of supplies or assistance: a practical way
Competitor – an organism that competes with other living things
Influence – the ability to have an impact in a non-directive or indirect manner
Relative – an object that is connected to, dependent upon, or in some way related to another thing
Separating – to separate or keep aside
Exercises 1: Read the following words and guess their meaning:
species, location, owl, adaptive radiation, origin, archipelago, surround, honeycreeper, illustrate, distinctive
characteristics, geographic separation, formation, identify, reproductive, cultivate, accumulate, scenario
Exercise 2 : Read the text above and find out if the statements are true or false.
True False
1.
Geographic separation of populations from a parent species,
followed by evolution, is known as sympatric speciation.
2.
Allopatric speciation refers to speciation that takes place within
a parent species while staying in the same place.
3.
An 's frequency at one end of a distribution will be
comparable to its frequency at the other end.
4.
Numerous kinds of divergence characteristics could impact
the two groups' reproductive isolation.
5.
The biology of the organism and its capacity for dispersal are
unlikely to determine the type of geographic separation required
to separate populations.
43
Fowler, S.,Roush, R. & Wise, J. (2017)
Concepts in Biology, Chapter 11, -Pp. 265-266. OpenStax,
https://openstax.org/details/books/concepts-biology
108
6.
Multiple instances of allopatric speciation have been observed
by scientists.