List the four types of gymnosperms. What characteristics do they have in common? What sets each group apart?
What will be an ideal response?
The four groups (cycads, ginkgoes, gnetophytes, and conifers) all have dominant woody sporophytes, inconspicuous dependent gametophytes, and all produce seeds, which are not enclosed in a fruit. Cycads have palm-like fronds, but rarely get more than several feet tall. Ginkgoes grow to be tall trees with fan-shaped deciduous leaves. Gnetophytes are a small, unusual order with vascular and seed features resembling those of flowering plants. Conifers are woody plants, usually large evergreen trees that bear seeds in cones.
You might also like to view...
In Frederic Clements' view, succession proceeds to an end point called a(n)
A. S1. B. S2. C. equilibrium community. D. climax community. E. tolerant stage.
What molecule does a sequence of DNA typically code for?
A) protein B) lipid C) monosaccharide D) nucleotide
A cell is dividing by binary fission. What can you conclude?
a. Mitosis has taken place without cytokinesis. b. Homologous chromosomes have already paired. c. The cyclin-Cdk complex is no longer phosphorylating enzymes. d. The cell cycle is out of control. e. The cell is prokaryotic.
The sense of smell is unique because it
A. works in conjunction with the sense of taste to produce a combined smell-taste effect. B. has direct connections to the limbic system and associated emotions. C. may be associated with vivid memories. D. All of the choices are correct.