Give examples of plants in each of the gymnosperm phyla. Differentiate among them with respect to morphology and

reproductive characteristics. Which is the most diverse? Least diverse? What will be an ideal response?


Concepts to Consider: Phylum Coniferophyta, the pines and firs; phylum Cycadophyta, the
cycads; phylum Ginkgophyta, the ginkgo tree; and phylum Gnetophyta (Ephedra, Gnetum,
and Welwitschia). Conifers are the most diverse; ginkgos comprise a single species.

Biology & Microbiology

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What are the monomers of proteins?

A. Glucose B. Fatty acids C. Nucleic acids D. Amino acids

Biology & Microbiology

The protein complex that initiates the process of conjugation following contact between two bacteria is called the _________

A. origin of transfer B. T DNA C. relaxosome D. nucleoprotein

Biology & Microbiology

This molecule catalyzes covalent bond formation between fragments of DNA.

A. helicase B. ligase C. polymerase D. primase E. nuclease

Biology & Microbiology

A collection of related hypotheses that have been shown to be true after extensive testing can be collectively called a ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology