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what is the ecological importance of mycophytes?
what is the non-congruent principle?
Write a flora formula for a flower which has a variable number of sepals, 8 petals united at the base, 8 stamens united by their anthers, and an inferior ovary of 4 united carpels.
Describe the structure of a catkin with regard to sex and completeness of the flowers.
What things do you count in order to determine the number of carpels in a compound ovary?
True or false: tubers and fruits of wild members of the Solanaceae may be safely eaten. Explain.
Describe the unusual stamens in many members of the Ericaceae. What two corolla shapes are typical of the family?
Which sex(es) of flowers in the Cucurbitaceae have nectary disks? Why?
You have been provided with a set of plates of fungi isolated from a diseased leaf, one Chytridiomycota, one Zygomycota, one Ascomycota and one Basidiomycota. The signs of infection indicate that the disease has been caused by a member of Ascomycota which does not form a sexual stage easily. What features would you look for in your isolates to indicate if the target fungus was present?
In cleared and stained root material you have seen structures that appear to be empty sacs in the epidermal cells with ostioles that exit to the soil. Which division are these fungi likely to be from?
Toxin X is released only in mature spores of a single fungus and only when both alleles at a single locus are present. The toxin is never observed when the alleles are together in hyphae or modified hyphae. What division is the fungus found in?
What causes sap to leak out of pine and maple trees?
If you break off a piece of an aloe plant and put it in water, will roots grow and What is that type of propagation called?
Does oxygen and hydrogen map up water?
what is the application of induced auto ploypoidy in crop improvement ?
