Which is a likely biotic factor limiting songbird distribution in Hawaii to alpine habitats?
A) temperature
B) oxygen content
C) moisture
D) insects causing fatal diseases in songbirds at lower altitudes
Answer: D
Biology & Microbiology
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The TFIID complex is formed by
A. TATA-binding protein TBP and TAFs. B. TATA-binding protein and activators. C. TATA-binding protein TBP, TAFs and RNA pol II. D. TAFs and the core promoter.
Biology & Microbiology
The reason that deciduous leaves turn bright colors of red and yellow in the fall is
What will be an ideal response?
Biology & Microbiology
Which of the following is a steroid hormone?
A) adrenaline B) melatonin C) glucagon D) T4 from the thyroid E) estrogen
Biology & Microbiology
In humans, one set of chromosomes is made up of 22 autosomes and 1 sex chromosome.
Answer the following statement true (T) or false (F)
Biology & Microbiology