What is a biome, and what principal factors influence biome types?
What will be an ideal response?
A biome is an area of land characterized by a certain climate and type of vegetation. Rainfall and temperature are the main determinants of the type of biome in a given area.
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Which of the following most adequately describes how the Alu element may have proliferated to constitute 10% of the human genome?
A. Multiple retroelements code the same gene. B. Retroelements increase with every generation. C. A single retroelement can be copied into many RNA transcripts. D. Retroelements increase with each cell division. E. Retroelements show self-proliferation.
Which of the following is true concerning
white muscle fibers and red muscle fibers?
a. white muscle fibers have more mitochondria b. red muscle fibers have no myoglobin c. white muscle fibers make ATP by aerobic respiration d. red muscle fibers fatigue less easily e. red muscle fibers get most of their ATP thanks to creatine phosphate
What is the mammalian transcription factor that elicits a cascade of gene transcription and developmental events that ultimately produce male internal and external structures?
What will be an ideal response?
Staphylococcal food poisoning is called an intoxication disorder because
A) toxic bacteria are ingested in the food. B) the bacteria produce type III secretion system toxins. C) affected people appear drunk. D) toxins produced by the bacteria growing in the food are ingested along with the food. E) the bacteria release toxins when they are digested.