Question

what do humans have in common with sea squirts?

Question options:

	Eyes
	Brains
	Guts
	All of the above

the enormous jaws and teeth of Paranthropus boisei indicate they ate:

Question options:

	Hard dry foods such as nuts and seeds
	Scavenged bones
	Fruits and nectar
	Grasses and bark

why is it thought that humans have almost identical tapeworms to those found in lions?

Question options:

	At some point in our recent evolutionary history we were eating lions
	Recently in our evolution, our ancestors were eating tapeworm-infested feces of lions
	Recently in our evolution, our ancestors were eating the same foods as lions

according to genetic comparisons between the tapeworms, when did the transfer of the lion tapeworm to a human ancestor occur?

Question options:

	Between 5-7 mya
	Between 50,000-100,000 years ago
	Between 2-3 mya
	Between 800,000-1.7 mya

Answer 1

1. Sea squirts, also known as tunicates, have an elaborate gut. However, unlike humans, they do not possess a well-developed brain or eyes. Hence, the corrsct answer is (c).

2. The enromous teeth of Paranthropus boisei indicates that these anmials ate hard and dry foods such as nuts and seeds. Option (a) is correct.

3. At some point in the evolution, humans used to scavenge meat from lions. This is how they become a part of the life cycle of Taenia. Option (A) is correct.

4. According to the genetic comparisons between tapeworms, the transfer of lion to a human tapeworm occurred between 800,000-1.7 million years ago. Option (D) is correct.