Self-study
P1
The okapi, a forest mammal of central Africa, has presented zoologists with a number of difficult questions since they first learned of its existence in 1900. ███
Intro topic ·
Okapi raises lots of questions
Question 1 ·
How to classify Okapi?
Size and stripes are like horse family.
Answer ·
Belongs to giraffe family
Belongs to giraffe because of skin-covered horns, two-lobed canine, and long tongue.
P2
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Question 2 ·
Size of Okapi population?
Answer ·
Not as rare as previously thought, but concentrated in limited area
They live only in a chain of forestland surrounded by savanna in northeastern central Africa.
P3
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Reasons for apparent rarity ·
Good camouflage, don't travel in groups or in open areas
They stay inside the forest.
Reason for staying inside forest ·
Eat only leaves
They never eat one plant much more than others. So they walk around the forest eating various leaves, and don't congregate in groups in the forest.
P4
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Question 3 ·
Why remain only in forest when they eat plants that are found between forest and savanna?
Possible Answers ·
Defense against predators or outcompeted by other animals in other areas
Question 4 ·
Why aren't they in other nearby forests?
Possible answer ·
Live in area that used to be the only forest
Zoologists think Okapis respect the boundaries of what used to be the only forest, even after forest expanded.
Passage Style
Phenomenon-hypothesis (RC)
Single position
6.
Based on the passage, the ██████ █████ ██ ████ ██████ ██ █████ ████ █████ ███ ██ ███ █████████ ███████████
a
The number of ██████ ██ ████ █████ ██████ ████ ██████████ ███ ██████████ ████████ ██ ██ ███
Although we know that okapis aren’t as rare as previously thought, this doesn’t support the claim that the number of okapis is “many times larger” than previously thought. Maybe the population is only twice as large as previously thought, or only 1.5 times as large.
b
Radio-tracking collars have ███████ ██████████ ██ ███████ ██████ ███ ███ █████████ █████ ███ ██████
Anti-supported, because we don’t have answers to “all” the questions about okapi. P4 raises questions that don’t have a definitive answer.
c
Okapis are captured ████████████ ███████ █████ ██████ ███ ██████████ ████ ██ █████████ ███ ███████ ██ ████ █████
d
Okapis are concentrated ██ █ ███████ ██████████ ████ ███████ ████ ██████ ██ ███ ███ █████ ███████ ██ ███ █████████ ██ ███████
e
The number of ██████ █████ ████████ ████████ ██ ██████ █████ ██ ██████ ██ ███ ████ ██████ ███████ ██████ ███ ████████
Not supported; we have no evidence that the okapi population would increase if they began to forage in the open border. Maybe they’d be more vulnerable to predators, and the population would decrease?