AnswersAHS Biology CR PrescriptiveLab: Interdependence of Organisms

Lab: Interdependence of Organisms — Cumulative exam Answers

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What hypothesis did Darwin investigate by studying the breeding of pigeons with distinctive traits?

A
New species can appear gradually through small changes in an ancestral species.
B
The amount of variation in a population is related to the type of environment it lives in.
C
Organisms have only the number of offspring that are supported by the environment.
D
Some traits appear in each generation, while others seem to disappear in some generations.
4

Why do a chicken embryo and a cow embryo look very similar even though the adults do not?

A
They are not related, but still have similar development.
B
They are distantly related, so their development is similar.
C
The embryos mutate in utero to form different structures.
D
The genetic makeup of the two species changes during development.
5

Which stimulus would most likely cause a person to squint?

A
foul odor
B
hot surface
C
cold environment
D
bright light
6

Two patients were admitted to the hospital. Patient one was diagnosed with salmonella poisoning, and patient two had West Nile. Which best describes their sicknesses?

A
Patient one has a communicable disease and patient two has a noncommunicable disease.
B
Patient one has a noncommunicable disease and patient two has a communicable disease.
C
Patient one contracted the sickness from contaminated materials and patient two contracted the sickness from an animal vector.
D
Patient one contracted the sickness from an animal vector and patient two contracted the sickness from contaminated materials.
9

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.
10

How does conservation affect biodiversity?

A
It helps to preserve climate change.
B
It decreases species diversity.
C
It helps to preserve biodiversity.
D
It decreases ecosystem diversity.
11

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.
12

What is semen?

A
an exocrine gland near the opening of the urethra
B
a structure located on the outside of the male body
C
a combination of sperm and other reproductive fluids
D
a production of fluid that gives the sperm nourishment
14

Which actions are involved in the immune response?

A
regulating hormonal and autonomous responses
B
identifying and destroying harmful substances
C
increasing and supporting the ability of red blood cells to carry oxygen
D
regulating and adjusting the skin's secretion of sweat and oil
18

The graph shows the changing levels of hormones during menstruation and ovulation. Which hormone has the most influence on preparing the body for pregnancy?

Question illustration
A
Luteinizing hormone promotes fertility because it spikes the most during ovulation.
B
Estradiol promotes fertility because it peaks slightly before ovulation.
C
Progesterone promotes fertility because its levels rise during ovulation and immediately after.
D
Follicle-stimulating hormone promotes fertility because it is released mostly during ovulation.

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