Birds are living representatives of which of the following lineages?

a. anapsids
b. archosaurs
c. lepidosaurs
d. synapsids
e. crocodilia


B

Biology & Microbiology

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Color pigments produced by __________ are used to dye woolens and litmus

a. club fungi b. mushroom c. algae d. lichens e. puff balls

Biology & Microbiology

The mitotic spindle is a microtubular structure that is involved in _____

A) splitting of the cell (cytokinesis) following mitosis B) triggering the compaction and condensation of chromosomes C) dissolving the nuclear membrane D) separation of sister chromatids

Biology & Microbiology

Which ion is pumped into guard cells in order to make them more flaccid?

a. Na+ b. Ca2+ c. K+ d. H+

Biology & Microbiology

You want to calculate the relative water content of a sapling. You measure the fresh weight to be 11.95g, the turgid weight to be 12.5g, and the dry weight to be 11.5g. What is the RWC of this plant, and is it likely to live or die?

A. 100%; live B. 55%; live C. 45%; die D. 45%; live E. 55%; die

Biology & Microbiology