How are the reproductive cycles of a fungus and a pteridophyte similar? a. both organisms form fruiting bodies that produce diploid seeds. b. both organisms reproduce sexually when two haploid hyphae fuse. c. both organisms produce haploid spores and exhibit diploid and haploid stages. d. both organisms exhibit a diploid stage and are only able to reproduce asexually. reset next plants and fungi: mastery test

The correct answer is option C, that is, both the organisms generate haploid spores and exhibit diploid and haploid stages.  

The sporophyte (of the haploid stage) in pteridophytes produce spores. The diploid stage in pteridophytes may take place when two of the spores combines and give rise to a prothallus, that is, the diploid stage of the pteridophytes.  

In fungi, the production of spores takes place by sporangiophores (haploid stage). At a certain stage, two horizontal hyphae among the two species of fungi, may amalgamate at the tips and produce a zygote (diploid) via plasmogamy and karyogamy.  

Both organisms exhibit a diploid stage and are only able to reproduce asexually.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

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