(A) What are the earliest, structurally most simple eukuryotes?
(B) How are these protistans different from bacteria?
(C) How many protistan species consist of the protozoans?
(D) How are some different kinds of protozoans animal-like?
(E) How would these animal-like protozoans reproduce?
2006-06-15 10:55:41 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
(A) List the 5 kingdoms we are most familiar with. Give me a summary of the characteristics associated with each.
(B) Our text mentions the possibility of 6 kingdoms. How would that work? Which kingdom is broken down into two? Why would scientists want to do this?
2006-06-15 13:06:53 · update #1
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2006-06-15 13:13:20 · update #2
got the answer A-E already thank very much for those who answer. plz only anwer two new qustion i listed THANKS a LOT!!!!
2006-06-15 13:15:35 · update #3
(A) protozoa
(B) protozoa are eukaryotes (have membrane bound organelles), bacteria are prokaryotes (no nucleus, organelles, etc)
(C) there are thousands of protozoans in Kingdom Protista (maybe even millions)
(D) Protozoans are animal like because they are motile (some have flagella and/or cillia), SOME of them cannot produce their own food (via photosynthesis), so they have to get food from their environment, and some are sexually reproducing organisms.
(E) via sexual reproduction
(F) next time pay attention in class :)
2006-06-15 12:26:14 · answer #1 · answered by Mandy 3 · 8⤊ 3⤋
(A) It's thought by some that the first eukaryotes evolved from one prokaryote engulfing another prokaryote, producing a benficial symbiotic relationship.
(B) Protists are eukaryotic, whereas bacteria are prokaryotic. While they are both (usually) unicellular (bacteria are - some protists are not), they differ greatly. Bacteria have cell walls consisting of peptidoglycan, do not contain a true membrane-bound nucleus, no membrane-organelles, no histones in their condensed DNA, and have coupled transcription and translation, among many other things.
Don't really know the anwers to your other questions off the top of my head.
2006-06-15 18:35:34 · answer #2 · answered by buxinator 3 · 0⤊ 0⤋
The stixth kingdom would be the archaebacteria I guess since they're always put on the side.
Sort of bacterias with characteristics of eukaryotes. They live in extreme environments (Temperatures of 90C or pH of 1...)
2006-06-16 14:57:34 · answer #3 · answered by TonySti 2 · 0⤊ 0⤋
A) Yeasts
2006-06-15 18:28:01 · answer #4 · answered by Kara M 1 · 0⤊ 0⤋