BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 28, Problem 2A
Determine which feature of the choanoflagellates was likely the most significant for the evolution of animals?
a. Flagellum with a funnel-shaped, contractile collar also found in sponges
b. A type sine kinase receptor on the surface of choanoflagellates that has strong homology to
c. A colonial form that resembles some fungi
d. Eyespots that are similar to ribbon worms
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Which protist group exhibits mitochondrial remnants with reduced functionality? a. slime molds b. diatoms c. parabasalids d. dinoflagellates
Which group is correctly paired with its description?
A. diatoms-important consumers in aquatic communities
B. diplomonads-protists with modified mitochondria
C. apicomplexans -producers with intricate life cycles
D. red algae-acquired plastids by secondary endosymbiosis
Which statement about protists is true?
a.
Protists have many different metabolic lifestyles.
b.
Almost all protists are parasitic.
c.
All protists use pseudopods or cilia to locomote.
d.
All marine protists rid themselves of excess water by means of contractile vacuoles.
e.
Protists are found only in aquatic habitats.
Chapter 28 Solutions
BIOLOGY
Ch. 28.1 - Prob. 1LOCh. 28.1 - Define endosymbiosis and explain how it relates to...Ch. 28.1 - Describe how mitosis in fungi and some protists...Ch. 28.2 - Describe how an organism would be classified as a...Ch. 28.2 - Prob. 2LOCh. 28.2 - Prob. 3LOCh. 28.3 - List the main features of diplomonads and...Ch. 28.3 - Prob. 2LOCh. 28.3 - Prob. 3LOCh. 28.3 - Prob. 4LO
Ch. 28.4 - Identify the distinguishing feature of the members...Ch. 28.4 - Prob. 2LOCh. 28.4 - Prob. 3LOCh. 28.4 - Prob. 4LOCh. 28.5 - Prob. 1LOCh. 28.5 - Distinguish between cellular and plasmodial slime...Ch. 28.6 - Prob. 1LOCh. 28.6 - Describe how humans use red algae.Ch. 28.6 - Explain why charophytes are considered the closest...Ch. 28.7 - Prob. 1LOCh. 28.7 - Prob. 2LOCh. 28.8 - Prob. 1LOCh. 28 - Prob. 1DACh. 28 - Prob. 1IQCh. 28 - Prob. 2IQCh. 28 - Fossil evidence of eukaryotes dates back to a. 2.5...Ch. 28 - DNA is not found in this organelle. a. Endoplasmic...Ch. 28 - Prob. 3UCh. 28 - Both diplomonads and parabasalids a. contain...Ch. 28 - Trypanosomes are examples of a. euglenoids. b....Ch. 28 - Prob. 6UCh. 28 - If a cell contains a pellicle, it a. can change...Ch. 28 - Strainenopila are a. tiny flagella. b. large...Ch. 28 - Choose all of the following that exlubit an...Ch. 28 - Choose all of the following that are...Ch. 28 - Prob. 11UCh. 28 - When food is scarce, cells of this organism...Ch. 28 - Analyze the following statement; and chose the one...Ch. 28 - Determine which feature of the choanoflagellates...Ch. 28 - Examine the life cycle of cellular slime molds,...Ch. 28 - Modem taxooomic treatments rely heavily on...Ch. 28 - Prob. 2SCh. 28 - Design an experiment to demonstrate that cells of...
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- Why are green algae placed in the Protista while plants are placed in a separate kingdom? a. Green algae have a cell wall of chitin, while plants have cell walls of cellulose. b. Plants enclose and protect the embryo within the seed, while green algae do not. c. The green algae use chlorophyll a, while plants use chlorophyll d. Algae reproduce only asexually, while plants reproduce sexually.arrow_forwardWhich of these locomotor organs would likely be the shortest? a. a flagellum b. a cilium c. an extended pseudopod d. a pelliclearrow_forwardBased on the diagram, which of the following pairs of organisms have the closest evolutionary relationship? A. Radiolarians and Forams B. Diatoms and Euglenozoans C. Ciliates and Radiolarians D. Diplomonads and Euglenozoansarrow_forward
- Which correctly identifies characteristics that protists share with animals? A. Motile, Prokaryotic, Multicellular B.Motile, Reproduce sexually, Photosynthetic C.Motile, Multicellular, Photosynthetic D. Eukaryotic, Motile, Reproduce sexuallyarrow_forwardWhat genus of protists appears to contradict the statement that unicellularity restricts cell size? a. Dictyostelium b. Ulva c. Plasmodium d. Caulerpaarrow_forwardIn the tree of life, which taxon does not belong to the Archaeplastida? A. green algae B. Charophyta C. flowering plants D. diatoms E. Red algaearrow_forward
- What is evidence for conflict in Dictyostelium? A. only clonal groups have unequal spore/stalk ratios B. chimeras form between genotypes C. clonal groups migrate farther as a slug compared to chimeras D. clonal groups have shorter stalk lengtharrow_forwardThe life cycles of perfect fungi are most similar to which other organism? a. Hydra that undergo asexual budding b. Diploid-dominant pea plants c. Haploid-dominant green algae d. Bacteria undergoing binary fissionarrow_forwardBased on the evidence in the diagram, which statement is true about fungi? A. They are more closely related to plants than to animals. B. They are more closely related to animals than to plants. C. They are more closely related to green algae than to plants. D. They are more closely related to green algae than to animals.arrow_forward
- Which statement about slime molds is correct? A. Cellular slime molds have haploid zygotes. B. Cytoplasmic streaming helps distribute nutrients and oxygen in cellular slime molds. C. In plasmodial slime molds, the haploid condition is the dominant part of the life cycle. D. Cellular slime molds have fruiting bodies that function in sexual reproduction. E. Cellular slime molds form masses when food is scarce, but their cells remain separated .arrow_forwardWhat is the function of the raphe in diatoms? a. locomotion b. defense c. capturing food d. photosynthesisarrow_forwardWhich parasitic protist evades the host immune system by altering its surface proteins with each generation? a. Paramecium caudatum b. Trypanosoma brucei c. Plasmodium falciparum d. Phytophthora infestansarrow_forward
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