16. The fist ukaryotes evolved from ancestral rokaryotes by a process tat nwolve

Question

16. The fist ukaryotes evolved from ancestral rokaryotes by a process tat nwolved which of the following? (Points : 2) O the evolution of a cytoskeleton O all of the above the loss of a cell wal the acquisition and evolution of organelles O membrane proliferation 17. Fungi are importantand release essential elements into the environment. (Points : 2) Po Fungae npothatand autotrophs predators decomposers 18. Which of the following statements is UNTRUE about fiungi? (Points : 2) Fungi have colonized all environments on Earth Fungi contain thick cell walls made of cellulose Fungi as food play a ras ap f aibread diries alcodosil berages Fungi are important decomposers in most ecosystems

Explanation / Answer

question 16 correct answer is A

that is evolution of cytoskeleton

explaination

as in prokaryotes there was no nuclues.

chromatin material ( genetic material) were used to dispersed in the cell without any definite boundaries.

but in case of first eukaryotes the genetic material had definite boundaries.

this genetic material with definite boundaries is termed as nucleus.

and the main function of cytoskeletan is to provide the accurate position to all cell orgenelles starting with nucleus.

cytoskeletan is found in all cells of all domains of life. i.e archea , bacteria , eukaryotes.

question number 17.

correct answer is C

i.e decomposers

explaination

mode of nutrition of fungi is saprophytic that is fungi obtains its food from dead and decay plants and animals.

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