What is the meaning of an Evolutionarily Significant Unit (ESU) in conservation biology?
What will be an ideal response?
An ESU is a set of populations with an evolutionary history that is independent of the evolutionary histories of other populations (Ryder, O. A. 1986 . Species conservation and systematics: The dilemma of subspecies. Trends in Ecology & Evolution 1:9-10). A population with a distinct history is genetically distinct from other populations of the same species. Preserving as much of the genetic diversity of a species as possible is a goal of conservation biology, so ESUs should be kept separate in captive breeding programs, and management programs should not capture individuals from one ESU and release them into the geographic range of a different ESU.
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Define cesarean section
What will be an ideal response?
Which of these is a correct count of the spinal nerves?
A) 9 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal B) 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal C) 7 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal D) 8 cervical, 11 thoracic, 4 lumbar, 6 sacral, 1 coccygeal E) 7 cervical, 11 thoracic, 5 lumbar, 6 sacral, 1 coccygeal
Homeostasis and occupying space are both unique characteristics of living things.
Answer the following statement true (T) or false (F)
Which of the following chemicals does not have a positive chronotropic effect?
A. Caffeine B. Thyroid hormone C. Epinephrine D. Potassium