Biology TEKS Correlations student is expected to:

Biology TEKS Correlations
(7) Science concepts. The student knows the theory of biological evolution. The
student is expected to:
(A)identify evidence of change in species using fossils, DNA sequences, anatomical similarities, physiological similarities, and embryology; and
Species A
Species B
Species C
Species D
Species E
Species F
Species G
Species H
This cladogram pairs species based on similar DNA codes. The vertical black bars represent where there are
differences in the DNA bases between the pairs. Which statement is supported by the data represented in
this cladogram?
Species pair G and H are most closely related to species pair C and D.
Species pair G and H have three differences, and are a distantly related species pair.
Species pair C and D and Species pair E and F share a recent common ancestor.
Species pair A and B have one difference in DNA, and are more closely related than the other species pairs.
This item is another example of an item that could be placed in TAKS objective 1, since the
students have to analyze the chart to determine the answer. However, the item does deal with
specific content and that is why it can be coded as a TAKS objective 3 item.
Charles A. Dana Center
Science TEKS Toolkit
Not all changes in a species take millions of years to occur. The development of which of the following is
considered evidence of biological evolution that can happen within 1 to 5 years?
The development of antibiotic-resistant bacteria
The development of the mammalian eye
The development of the Galapagos finches
The development of whales from land mammals
“Tigons” and “Ligers” can result when a tiger and a lion mate. However, this does not happen in the wild,
and the offspring that may result are usually sterile and short-lived. Based on this information, all of the
following could be inferred except —
lions and tigers are separate species
lions and tigers are closely related
lions and tigers occupy the same niche in the same ecosystem
lions and tigers have similar anatomy and physiology
The images in item 36 are Photos © 2005 by William Dow / Taken at Shambala Preserve, Acton, CA.
Charles A. Dana Center
Science TEKS Toolkit