states that two species cannot coexist indefinitely in the same niche.
A. Zonal exclusion theory
B. Endosymbiotic theory
C. Co-inclusion principle
D. Competitive exclusion principle
E. Second law of thermodynamics
D. Competitive exclusion principle
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The lineages Anura, Caudata, and Gymnophiona are all part of which of the following group?
a. Testudines b. Archosauromorpha c. Squamata d. Sphenodontia e. Amphibia
In the knee-jerk reflex arc, the synapse between a sensory neuron and a motor neuron occurs where?
a. in the brain b. between the receptor and the spinal cord c. within the muscle of the leg d. within the spinal cord e. in the nerve leading to the spinal cord
Which system relies on the contraction of smooth muscle to propel luminal contents?
a. digestive b. sensory c. respiratory d. nervous e. endocrine
Auxin produced by the apical meristem inhibits the germination of lateral buds
____________________ Indicate whether the statement is true or false.