1. The protists are a diverse group of organisms that have traditionally been gr
ID: 221826 • Letter: 1
Question
1. The protists are a diverse group of organisms that have traditionally been grouped together because they all a. have the same type of nutrition. b. live in the same environments. c. have very similar DNA sequences. d. have very similar shapes. e. are not prokaryotes, fungi, plants, or animals. 2.The majority of protists are a. anaerobic. b. aerobic. c. autotrophic d. parasitic. e. photosynthetic. 3. Which of the following best describes the phylogenetic relationship between protists, fungi, plants, and animals? a. Fungi and animals share a common protist lineage, while plants arose from a different protist ancestor. b. Fungi and plants share a common protist lineage, while animals arose from a different protist ancestor. c. Animals and plants share a common protistlineage, while fungi arose from a different protist ancestor. d. Plants, animals, and fungi each arose from a different protist lineage. e. Plants, animals, fungi, and protistseach arose from the same prokaryotic ancestor. 4. The only protists that have 2 types of nuclei in each cell are a. Archaeplastida. b. Dinoflagellates. c. Ciliates. d. Excavates. e. Amoebozoans. 5. When under attack, ciliates can eject dart-like protein threads from surface organelles called a. vacuoles. b. gullets. c, trichocysts. d. phagosomes. e. alveoli. 6. Which of the following does the macronucleus control? a. asexual reproduction b. sexual reproduction c. growth and metabolism d. osmosis e. digestion of preyExplanation / Answer
Answer:
1) The protists are a diverse group of organisms that have traditionally been grouped together because they all
e - are not prokaryotes, fungi, plants or animal.
2) the majority of protists are - b) aerobic
3) a) fungi and Animals share a common protist lineage, while plant arose from a different protist ancestor.
4) the only protists that have 2 types of nuclei in each cell are - c) ciliates
5) When under attack, ciliates can eject dark-like protein threads from surface organelles called – c) trichocyst
6) Which of the following does the macro nucleus control? – c) growth and metabolism
7) Red tides and extensive fish kills are caused by population bloom of – b) dinoflagellates
8) Algin is a substance used to thicken products as diverse as ice creams, cosmetics, and floor polish. It is extracted from the cell wall of d) brown algae.
9) Agar is a substance sued as culture medium in the laboratory. It is extracted from the cells walls of e) red algae.
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