AnswersFL-2001340-Environmental Science BHuman Impact on the Environment

Human Impact on the Environment — Cumulative exam Answers

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Which of the following examples can cause gene flow between populations?

A
an increase in predators to a population of zebra
B
a volcanic eruption that kills half of a population of mice
C
bird droppings that contain seeds from a different location
D
a person that sprays a toxin on a group of mosquitoes
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Red-green color blindness is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Which individuals in the pedigree are identified and labeled carriers for red-green color blindness?

Question illustration
A
Lisa and Monica
B
Sam, Tim, Bella, and Joshua
C
Ben, Jenny, Mike, Carol, Katie, and Chris
D
Ben and Lisa
43

Before the beginning of the Industrial Revolution, most peppered moths found in and around Manchester, England, exhibited light-colored wings speckled with black. After the Industrial Revolution, peppered moths with dark wings became predominant in the area.Which term best describes the change from more light-colored moths to more dark-colored moths?

Question illustration
A
competition
B
evolution
C
acquired
D
overpopulation
44

Kai looks at a photo of herself with her parents. She notices that, while her features are similar to her parents’ features, they do not appear to be identical. Which explains why this is the case?

A
Their DNA is made of different codon sequences.
B
Their DNA is made of four different bases.
C
Kai inherited more proteins from one parent than the other.
D
Kai inherited different amino acids from either of her parents.
45

What is likely to happen to a healthy population that is experiencing exponential growth?

A
It will eventually reach its carrying capacity.
B
It will experience a population crash.
C
It will go extinct in the near future.
D
It will continue to grow exponentially indefinitely.
46

Turner syndrome occurs in females who instead of having two X chromosomes have either only one X chromosome or a fragmented X chromosome. Klinefelter syndrome occurs in males who have multiple X chromosomes. Consider the karyotype.Which individual is shown in the karyotype?

Question illustration
A
male with Turner syndrome
B
male with Klinefelter syndrome
C
female with Turner syndrome
D
female with Klinefelter syndrome
47

During which process is mRNA synthesized from a DNA template with the aid of RNA polymerase?

A
transcription
B
translation
C
translocation
D
transportation
48

A Russian citizen has illegally obtained a Siberian tiger and is trying to sell the tiger’s fur in the United States. What treaty does this violate?

A
Tiger Treaty
B
Lacey Treaty
C
CITES
D
EPA
49

Pandas eat bamboo for energy. What are pandas?

A
producers
B
consumers
C
decomposers
D
autotrophs
50

Hyenas and lions have fierce battles over food. Which type of relationship does this describe?

A
parasitism
B
commensalism
C
predation
D
competition

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