Red imported fire ants are an invasive species in United States. How have they harmed the Texas horned lizard, which feeds on native ants?
a. They act as parasites on the lizards.
b. They are poisonous to the lizards.
c. They damage the lizard's breeding area.
d. They increase the amount of predatory birds, which eat lizards.
e. They have replaced many native ant populations, so the lizards have less food.
e
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In an experiment the subjects or items being investigated are divided into the experimental group and
(a) the nonexperimental group. (b) the control group. (c) the statistics group. (d) none of these choices.
The biotic potential representing growth without limits at its maximal rate is indicated by what symbol?
A. ri B. N C. K D. dN/dt E. N/K
What is an advantage for using Arabidopsis to study plant development and genetics?
a. The Arabidopsis genome is largely unstudied, and therefore there is a lot that scientists can learn. b. Arabidopsis mutants can be easily induced with chemicals. c. There are no developmental mutants in Arabidopsis, therefore, normal development can be studied easily. d. This plant completes its life cycle in just a few months. e. This plant is a weed of no economic importance
How to describe the bacteria that after 24 hr incubation, the Triple Sugar Iron (TSI) Agar Tube showed Yellow slant/Yellow butt
A. The bacterium can produce H2S gas B. The bacterium is facultative anaerobe, saccharolytic and utilizes, both glucose and lactose C. The bacterium is facultative anaerobe, saccharolytic and utilizes glucose only D. The bacterium is strictly aerobic E. The correct answer is not listed