AnswersFall 24 GSE Biology B-ICHuman Impact on the Environment

Human Impact on the Environment — Cumulative exam Answers

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Consider the generalized cladogram of fish.Osteichthyes is a group of fish that have the derived characteristics of jaws and true bones. Which letter corresponds to where Osteichthyes belongs on the cladogram?

Question illustration
A
A
B
B
C
C
D
D
43

Arianne recently traveled abroad where she enjoyed eating food from different countries and learning about different cultures. A week after she returned home, she checked into the hospital with signs of nausea, fever, and diarrhea. What best explains what happened to Arianne?

A
A parasitic bacteria contaminated her food.
B
A mutualistic bacteria infected her digestive system.
C
A commensalistic organism is now living in her intestine.
D
A predatorial organism is consuming her natural bacteria.
44

What will happen to the frequency of the recessive allele for the HbS gene when there is an outbreak of malaria?

A
The frequency will increase.
B
The frequency will decrease.
C
The frequency will remain constant.
D
It is impossible to predict how the allele frequency will change.
E
The frequency will be cut in half with each generation.
45

There are four steps in bacterial conjugation. The second step is missing in this list.1. Special sex pilus connects two cells.2.3. Each cell makes a complementary DNA strand.4. The cells separate.Which is the missing step for the process of conjugation described?

A
Two new, identical cells are produced.
B
The cell membrane elongates and pinches off.
C
Some DNA moves from one cell to another.
D
A DNA molecule attaches to the cell membrane.
46

A student studies a plant specimen. The student notices that the plant has seeds that are enclosed by a fruit. Which term can the student use to definitely describe the plant based on the evidence that they see?

A
angiosperm
B
gymnosperm
C
monocot
D
dicot
47

Which of these are most likely homologous structures? bat wing dragonfly wing Tyrannosaurus arm

Question illustration
A
bat wing and dragonfly wing
B
bat wing and Tyrannosaurus arm
C
dragonfly wing and Tyrannosaurus arm
D
bat wing, dragonfly wing, and Tyrannosaurus arm
48

In the heart, one ventricle pushes blood with oxygen to the cells of the body. Where does the other ventricle push the blood without oxygen?

A
to the cells
B
to the tissues
C
to the lungs
D
to the heart
49

Shelby is a plant breeder who is trying to identify the cause of a disease among a group of trees. She observes that the organism reproduces through spores and has reproductive structures that are shaped like a sac. Which type of fungus is it?

A
Ascomycota
B
Basidiomycota
C
Chytridiomycota
D
Zygomycota
50

A relationship in which one organism benefits while the other is neither harmed nor helped is called

A
predation.
B
parasitism.
C
commensalism.
D
mutualism.

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