Terms: Symbiosis, mutualism, parasitism, commensalism, myxotrophic, coencytic 1. What is a eukaryote in terms of how genetic information (DNA) is stored and cellular structures, especially those using filaments and tubules? 2. What evidence is there that mitochondria and chloroplasts have an endosymbiotic origin? 3. Look at the Eukaryote phylogeny in the text. Back in the day, you would have been taught that there were five kingdoms; Animals, (land) Plants, Fungi, Monera (Archaea and Eubacteria) and Protists – the single celled Eukaryotes. What kind of phylogenetic group would Protists be?

Explanation:

Coenocytic is a multinucleate cell which results from multiple nuclear divisions without cytokinesis,with multiple independently dividing nuclei

Mitochondria and chloroplasts are believed to have developed from symbiotic bacteria, specifically alpha-proteobacteria and cyanobacteria respectively

Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms; at some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion

Mixotrophic protists are single celled eukaryotes that can obtain carbon and energy from more than one trophic process (e.g. photosynthesis and phagocytosis)

The ability of protists to combine photosynthetic and heterotrophic nutrition in a single cell is well known

c. movement because i took the test and it lets me review my answers

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.