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