Biology TEKS Correlations
(12) Science concepts. The student knows that interdependence and interactions
occur within an ecosystem. The student is expected to:
(B)interpret interactions among organisms exhibiting predation, parasitism, commensalism, and mutualism;
44.
In forested areas that are dominated by a single species of very tall trees, such as the redwood forests of
California, there is little diversity in the species of trees. What is the most likely reason for the lack of tree
diversity?
A.
B.
C.
D.
45.
Length of growing season
Competition for light
Lack of rainfall
Temperature fluctuations
All of the following are examples of parasitism except a —
A.
B.
C.
D.
mistletoe plant absorbing nutrients from an ash tree
mosquito feeding on a raccoon
tapeworm absorbing nutrients in a dog’s intestine
female black widow spider eating her mate
46. Rhizobium is a soil-based bacterium that forms nodules on the roots of legumes such as peanuts, soybeans,
and alfalfa. It provides nitrogen to the plant and in return, the plant provides carbon and energy for the
bacterium. Which of the following best describes this relationship between Rhizobium and the plants?
A.
B.
C.
D.
Predator–prey
Parasite–host
Commensalistic
Mutualistic
Charles A. Dana Center
Science TEKS Toolkit
www.sciencetekstoolkit.org