822091
Questão 1
Questão
Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as:
Responda
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Dinoflagellates
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diatoms
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Kelps
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euglenoids
Questão 2
Questão
Which of the following is a common feature of diplomonads and parabasalids?
Responda
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move using cilia
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lack a mitochondria
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have multiple mitochondria
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contain a micronucleus
Questão 3
Questão
True or false: Spores are the most common means of reproduction
Responda
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True
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False
Questão 4
Questão
What is the function of the bacterial capsule and/or slime layer?
Responda
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Protection
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adherence
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movement
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all of the above
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a and b
Questão 5
Questão
Which of the following are described as nonliving particles comprised of nucleic acid genomes enclosed in protein?
Responda
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Bacteria
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Molecules
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Viruses
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Protists
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Archaea
Questão 6
Questão
Identify which of the following would not belong to the domain eukarya.
Responda
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Photo synthetic plants
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Multicellular fungi
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Thermophilic archaea
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multicellular animals
Questão 7
Questão
which of the following represents the correct hierarchical order, from largest to smallest.
Responda
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species, genus, family, class, order
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species, family, genus, class, order
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class, genus, order, family, species
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class, oder, family, genus, species
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class, family, order, genus, species
Questão 8
Questão
which of the following represents the correct hierarchical order, from largest to smallest.
Responda
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species, genus, family, class, order
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species, family, genus, class, order
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class, genus, order, family, species
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class, oder, family, genus, species
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class, family, order, genus, species
Questão 9
Questão
Tuberculosis affects the:
Responda
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gastro-intestinal tract
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circulatory system
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respiratory tract
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nervous system
Questão 10
Questão
True or false: Stomach ulcers are caused by the bacteria, Helicobacter pylori.
Responda
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True
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Fale
Questão 11
Questão
Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in:
Responda
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the cell wall: gram+ have peptidoglycan, gram-negative have pseudo-peptidoglycan.
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the plasma membrane: gram+ have ester-liked lipid, gram-negative have either-linked lipds
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the cell wall: gram+ have a thick layer of peptidoglycan and gram-negative have a thin layer of peptidoglycan plus and outer membrane.
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chromosomal structure: gram+ have circular chromosomes, gram-negative have linear chromosomes.
Questão 12
Questão
Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in:
Responda
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the cell wall: gram+ have peptidoglycan, gram-negative have pseudo-peptidoglycan.
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the plasma membrane: gram+ have ester-liked lipid, gram-negative have either-linked lipds
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the cell wall: gram+ have a thick layer of peptidoglycan and gram-negative have a thin layer of peptidoglycan plus and outer membrane.
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chromosomal structure: gram+ have circular chromosomes, gram-negative have linear chromosomes.
Questão 13
Questão
True or False: following rRNA sequence analysis, scientists found Domain Bacteria to be closely related to the Domain Eukarya.
Responda
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True
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False
Questão 14
Questão
Fungi obtain their food by:
Responda
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ingestion
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absorbing organic molecules that have been digested by secreted enzymes
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undergoing photosynthesis
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all of the above
Questão 15
Questão
Which of the following are included in the alveolar phylum:
Responda
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Plasmodium (malaria)
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Trypansosomes
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ciliates
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a and b
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a and c
Questão 16
Questão
the main decomposers in the biosphere are ______ and _____.
Responda
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fungi, animals
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animals, bacteria
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bacteria, plants
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bacteria, fungi
Questão 17
Questão
Which on the following fungal groups reproduces using aquatic flagellated zoospores?
Responda
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Glomeromycetes
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Zygomycetes
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Chtridiomycetes
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Ascomycetes
Questão 18
Questão
The tropical diseases such as African sleeping sickness, Chaga's disease, and leishmaniasis are caused by:
Responda
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apicomplexans
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phytomastigotes
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trypansomes
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oomycetes
Questão 19
Questão
which of the following organelles present in eukaryotic cells may have resulted from an endosymbiotic relationship.
Responda
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Chloroplasts
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Rough Er
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Ribosomes
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Lysosomes
Questão 20
Questão
A process by which a bacteriophage may change a benign bacteria into a virulent strain:
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induction
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phage conversion
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lysogeny
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replication
Questão 21
Questão
the cells walls of most bacteria are composed of _____, which is not present in archaea.
Responda
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polysaccharides
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ester-linked lipids
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capsid proteins
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peptidoglycan
Questão 22
Questão
most viruses traget specific cells based on what is expressed on the surface of the host cell. As a result, viruses can only replicate in a limited number of host's cells. The phenomenon is commonly referred to as:
Responda
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endosymbiosis
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tissue tropism
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selection typing
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transformation
Questão 23
Questão
The devastating effete of AIDS results from the viral destruction of a specific type of lymphocyte known as ______ cells.
Responda
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Helper T cells
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Plasma
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Red Blood
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Cytotoxic B cells
Questão 24
Questão
Which of the following eukaryotic kingdoms contains a diverse group of unicellular and multicellular organisms that do not fit into any other eukaryotic kingdom?
Responda
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Fungi
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Protista
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Animalia
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Plantae
Questão 25
Questão
The marine multicellular protists including the larger brown algae belong to the:
Responda
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dinoflagellates
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choanofagellida
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stramenopiles
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euglenoids
Questão 26
Questão
specialized symbiotic associations between the roots of plants and fungi are called:
Responda
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lichen
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hyphai associations
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mycorrhizae
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mycelium
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