1. zygomycetes reproduce asexually through the haploid spores formed in , or sexually through diploid nuclei formed in .
2. are called club fungi because they produce club-shaped reproductive structures like toadstools.
3. the vegetative body of most fungi is called a(n) , which consists of an interwoven mass of threadlike filaments called .
4. a(n) is a symbiotic association between a fungus and a single-celled alga or cyanobacterium. the fungus protects the photosynthesizer from harsh conditions while consuming the extra nutrients it produces.
5. a(n) is a symbiotic association between a fungus and the roots of a plant. the fungus receives energy-rich sugar molecules produced by the plant while passing minerals and nutrients from the soil to the root.
6. , also known as sac fungi, include morels, yeasts, and the species that produces penicillin.

Explanation:

1. Zygomycetes reproduce asexually through the haploid spores formed in sporangia, or sexually through diploid nuclei formed in zygospore.

2. Basidiomycota are called club fungi because they produce club-shaped reproductive structures like toadstools.

3. The vegetative body of most fungi is called a hyphae, which consists of an interwoven mass of threadlike filaments called mycelium.

4.  A lichen is a symbiotic association between a fungus and a single-celled alga or cyanobacteria. The fungus protects the photosynthesizer from harsh conditions while consuming the extra nutrients it produces.

5. A mycorrhiza is a symbiotic association between a fungus and the roots of a plant. The fungus receives energy-rich sugar molecules produced by the plant while passing minerals and nutrients from the soil to the root.

6. Ascomycota, also known as sac fungi, include morels, yeasts, and the species that produces penicillin.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.