Protists and Fungi — Unit test Answers

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When protists and fungi are compared, which feature is unique to protists?

A
spores
B
hyphae
C
flagella
D
pseudopods
2
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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
3

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.
4

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
5

The lungs, nose, and trachea are organs of the respiratory system. Which best describes these organs?

A
They deliver nutrients to the other tissues.
B
They deliver oxygen to the blood.
C
They are both used for support.
D
They help break down food.
6

Consider these phylogenetic trees. The first tree is based on physical characteristics. The second tree is based on structure, genetics, and evolutionary history. Which can be concluded from a comparison of the two phylogenetic trees?

Question illustration
A
Phylogenetic trees are not subject to change.
B
Classification can change with new discoveries and evidence.
C
Classification does not change with more evidence.
D
Phylogenetic trees are inaccurate.
7

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
8

Brown bears pant, which means they breathe with short, quick breaths. This helps circulate cool air over moist surfaces in the mouth.

A
maintaining internal water levels by releasing moisture
B
maintaining internal water levels by taking in moisture
C
maintaining body temperature by warming up
D
maintaining body temperature by cooling down
9

Once the body has begun shivering, what happens to make it stop shivering?

A
When body temperature returns to normal, the respiratory system sends a message to the skeletal system to stop shivering.
B
When body temperature returns to normal, the nervous system sends a message to the muscular system to stop shivering.
C
When body temperature is below normal, the nervous system sends a message to the skeletal system to stop shivering.
D
When body temperature is below normal, the respiratory system sends a message to the muscular system to stop shivering.
10

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.
11

The classification levels of a human are listed below from largest to smallest. EukaryaAnimaliaChordataMammaliaPrimatesHominidaeHomosapiensWhich level of biological classification do Mammalia and Hominidae represent, respectively?

A
class and family
B
order and class
C
family and species
D
species and kingdom
12

A biologist is studying two organisms, X and Y. She knows that at least one of them is an animal. Organism X only reproduces sexually. Organism Y reproduces both sexually and asexually.

A
Organism X is an animal, and organism Y is not.
B
Organism Y has the benefit of not having to find a mate.
C
Organism X has offspring that are not genetically diverse.
D
Organism Y is a heterotroph, and organism X is not.
13

Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body’s cells. Which organelle is most likely malfunctioning in the patient’s cells?

A
Golgi apparatus
B
lysosome
C
ribosome
D
endoplasmic reticulum
14

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
15

Consider this animal cell.Which organelles are labeled D, and what is one feature that distinguishes them from the other labeled organelles?

Question illustration
A
chloroplasts; the only organelles that produce sugars from sunlight
B
ribosomes; only found in animal and bacterial cells
C
centrioles; found in animal cells but not plant cells
D
mitochondria; the only energy-generating structures found in cells
16

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
17

A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?

A
It contains proteins.
B
It contains cellulose.
C
It contains carbohydrates.
D
It is selectively permeable.
18

Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis?

A
The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the muscular system.
B
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system.
C
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system.
D
The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.
19

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.
20

Which level of classification includes the most species?

A
kingdom
B
domain
C
genus
D
class

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