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Protist Life Cycle Diversity

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Questions and Answers

What is a defining feature of mixotrophs?

Can only engage in photoautotrophy

Lack chloroplasts

Can switch between photoautotrophy and heterotrophy (correct)

Can only engage in heterotrophy

Which is a method protists use to reproduce sexually?

Fusion of gametes (correct)

Fragmentation

Binary fission

Budding

Which eukaryotic supergroup is characterized by organisms like choanoflagellates?

Amoebozoa

Opisthokonta (correct)

Archaeplastida

Rhizaria

What distinguishes Rhizaria from other supergroups?

Shell-like structures (C) Signup and view all the answers

Which supergroup includes red and green algae with photosynthetic abilities similar to land plants?

Archaeplastida (D) Signup and view all the answers

What can trigger the switch from asexual to sexual reproduction in protists?

Environmental stress (A) Signup and view all the answers

What is a key characteristic of Chytridiomycota in terms of reproduction?

They form zygospores during sexual reproduction. (B) Signup and view all the answers

Which phylum includes species like black bread mold?

Zygomycota (D) Signup and view all the answers

What is the main role of fungi in various ecosystems?

Breaking down dead organic matter (C) Signup and view all the answers

Which phylum of fungi is characterized by the production of basidiospores on club-like basidia?

Basidiomycota (A) Signup and view all the answers

What distinguishes Glomeromycota in terms of reproduction?

They almost exclusively reproduce asexually. (D) Signup and view all the answers

In which phylum of fungi do yeasts and truffles belong?

Ascomycota (A) Signup and view all the answers

What type of life cycle do fungi primarily have?

Primarily haploid with a transient diploid stage (B) Signup and view all the answers

Which process in fungal reproduction involves the fusion of cytoplasm between two different mating types?

Plasmogamy (D) Signup and view all the answers

What is a key similarity between fungi and animals in terms of metabolism?

Both store carbohydrates as glycogen (C) Signup and view all the answers

Which characteristic do fungi share with bacteria in terms of their role in ecosystems?

Absorption of nutrients across the cell surface (B) Signup and view all the answers

How do fungi primarily obtain nutrients for their survival?

Direct absorption through their hyphae (D) Signup and view all the answers

What characterizes asexual reproduction in fungi?

Formation of genetically identical spores (D) Signup and view all the answers