12 Jun BIO 100 Chordates are responsible for 98% of the organismal
Question
I’m stuck with these questions, can someone help me with them and please provide the rationale for each of them
Question 1:
Chordates are responsible for 98% of the organismal diversity on the planet
A: True
B: False
Question 2:
Members of the phylum chordata have all of the following characteristics except
A: Notochord
B: Nerve Cord
C: Vertebral Column
D: Pharyngeal slits
Question 3:
Marsupial mammals differ from placental mammals because
A: the young in the pouch do not drink their mother’s milk
B: They lack fur
C: The young are altricial
D: they are only found on island continents such as Australia
Question 4:
You are looking at a tunicate, subphylum urochordata. It lacks a notochord and a nerve cord. Why is it classified with the rest of the chordates?
A: a notochord and nerve cord are not necessary requirements to be in the phylum chordate
B: The notochord and nerve cord are present in the larval form
C: urochordates are actually not in the phylum chordate
D: tunicates were categorized here historically and have never been removed
Question 5:
Which of the following are not considered amniote tetrapods?
A: Tunicates
B: Crocodiles
C: Iguanas
D: Alligators
Question 6:
Which of these is considered a key step in the evolution of vertebrates?
A: Amniote Eggs
B: Bipedal locomotion
C: Feathers
D: Fur/hair
E: all of the above are considered key steps in the evolution of vertebrates
Question 7: Many animals do not have heads (starfish, clams, jellyfish) but all vertebrates do. What is one advantage of having a head?
Protects the brain
Allows one part of the body to be specialized for sensory reception
Allows us to see where we are going
Allows us to communicate
Question 8: Humans and other vertebrates have segemented bodies (head, trunk, appendages). Which of these is an advantage of segmentation?
different parts of the body can be specialized for different functions
Provides spaces for organs
Allows locomotion
Allows regeneration
Question 9: The classification of Craniata includes which animals?
A: amphibians
B: sea stars
C: anemones
D: annelids
Question 10: Humans evolved from chimpanzees
A: True
B: False
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