AnswersBiology - SC3209 ICIdentifying Unknown Organisms

Identifying Unknown Organisms — Unit test Answers

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A biologist is in the process of classifying a newly discovered fungus. The fungus is a decomposer and has saclike structures. The organism most likely belongs in the same group as which of the following?

A
fungi that are rusts
B
fungi that are associated with bread mold
C
fungi that makes blue cheese
D
fungi that are autotrophic decomposers
2
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Consider the table.Types of BacteriaFormShapeAssociated diseaseCoccusXStrep throatBacillusRod shapedYSpirillumSpiralCholera Which best describes X and Y?

A
X = Spherical; Y = E. coli
B
X = Comma shaped; Y = Whooping cough
C
X = Oval shaped; Y = S. aureus
D
X = Rod shaped; Y = Pneumonia
3

Mike is studying the phylogenetic tree for big cats. He made several statements about the tree. Which statement is not true?

Question illustration
A
The leopard is more closely related to the jaguar than to the snow leopard.
B
The leopard is more closely related to the tiger than to the clouded leopard.
C
The leopard is more closely related to the snow leopard than to the clouded leopard.
D
The leopard is more closely related to the tiger than to the snow leopard.
4

Which best describes the lysogenic cycle?

A
A person who is infected with the herpes virus may develop a cold sore when the virus is in the lysogenic cycle.
B
The lysogenic cycle occurs mainly in extremely infectious diseases that rapidly cause infection.
C
In the lysogenic cycle, genetic material from the virus and host cells are integrated and are called a provirus.
D
In the lysogenic cycle, virus particles are produced and assembled within the host cell.
5

Refer to this portion of a dichotomous key to answer the question.1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 25. (a) Has a small fin on back near tail ® 6 (b) Has no fin on back near tail ® 76. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 107. (a) Tail is asymmetrical ® Sturgeon (b) Tail is symmetrical ® 8What would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical?

A
sturgeon
B
go to step 8
C
go to step 2
D
catfish
6

Which series correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group?

A
species, genus, family, order, class, phylum, kingdom, domain
B
domain, kingdom, phylum, class, order, family, genus, species
C
species, genus, family, class, order, phylum, kingdom, domain
D
domain, kingdom, phylum, order, class, family, genus, species
7

A botanist has discovered a new plant species and is trying to classify the plant. Its seed has one cotyledon, it has six flower parts, its leaves have parallel veins, its stem is herbaceous, and the vascular bundles in its stem are scattered throughout the stem. Which best classifies this plant?

A
gymnosperm and dicot
B
gymnosperm and monocot
C
angiosperm and monocot
D
angiosperm and dicot
8

Which question would be asked in a dichotomous key?

A
How long are the insect’s antennae?
B
Are the insect’s antennae longer than its head?
C
Are the insect’s antennae long or short?
D
How does the insect use its antennae?
9

The cactus has a specialized fleshy stem that is specialized to store water for long periods of time. Which plant tissue most likely makes this action possible?

A
apical
B
dermal
C
ground
D
vascular
10

Which level of classification includes the most species?

A
kingdom
B
domain
C
genus
D
class
11

This diagram summarizes a method to group land plants. Which row in the table best represents the evolution of plants that match the diagram? Labels for Plant Classifications 123456AGymnospermsAngiospermsSeed plantsSeedless plantsMonocotsDicotsBDicotsMonocotsAngiospermsGymnospermsSeed plantsSeedless plantsCSeed plantsSeedless plantsAngiospermsGymnospermsDicotsMonocotsDSeedless plantsSeed plantsGymnospermsAngiospermsMonocotsDicots

Question illustration
A
A
B
B
C
C
D
D
12

Phytoplankton, shown on the left in the image below, are microscopic organisms that can be found in freshwater and salt water environments. They perform photosynthesis to get energy and act as an important food source for larger organisms, such as the whale that is shown on the right. Which characteristic describes the whale but not its food source, the phytoplankton?

Question illustration
A
The whale is heterotrophic.
B
The whale has cell walls.
C
The whale is unicellular.
D
The whale is a prokaryote.
13

When an insect is feeding on a plant, which types of tissue are at work to protect the plant and help it heal from injury?

A
dermal and collenchyma
B
parenchyma and collenchyma
C
vascular and dermal
D
ground and parenchyma
14

Which best describes the difference between protists that have cilia and those that have flagella?

A
Those that have cilia are animal-like protists, and those that have flagella are plant-like protists.
B
Those that have flagella are animal-like protists, and those that have cilia are plant-like protists.
C
Those with cilia move using hair-like extensions, and those with flagella move using a single whip-like extension.
D
Those that have cilia are heterotrophs, and those that have flagella are autotrophs.
15

Which statement is best supported by the data in the graph?

Question illustration
A
Since 2000, there has been an increase in the number of people living with HIV, but a decrease in the number of people newly infected with HIV.
B
Since 1990, both the number of new HIV infections and the number of deaths due to AIDS has consistently increased.
C
The life span of a person living with HIV has become shorter.
D
Twice as many people were living with HIV in 2008 than in 2000.
16

An example of genetic recombination is shown in the diagram.Which type of bacterial reproduction is depicted in the diagram?

Question illustration
A
binary fission
B
transduction
C
conjugation
D
transformation
17

These are the three main organs that make up the plant body. What is the main function of the structure that is identified as A in the picture above?

Question illustration
A
It anchors the plant.
B
It produces food.
C
It absorbs nutrients.
D
It supports the plant.
18

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food?

A
Viruses can use energy of living cells that they infect.
B
Viruses can replicate inside a host that they infect.
C
Viruses can cause contagious illnesses in host cells.
D
Viruses integrate their RNA or DNA into infected cells.
19

Consider the diagram of the basic structure of a bacterium.Which of the labeled structures in the image allows bacteria to exchange genetic material and thus evolve to be better pathogens?

Question illustration
A
A
B
B
C
C
D
D
20

Which protist exhibits both animal-like and plant-like characteristics?

A
a protist that has pseudopods and swims by using cilia
B
a protist that makes its own food and has glass-like cell walls
C
a protist that is a heterotroph and has chlorophyll
D
a protist that can move or be stationary

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