BIO 101 EXAM 4 STUDY GUIDE 2026 FULL
CONTENT QUESTIONS AND ANSWERS
COMPLETE SET
◉ Which of the following claims about human evolution is most
consistent with current scientific understanding?
Answer: Humans and other apes represent divergent lines of
evolution from a common ancestor.
◉ The evolution of similar insulating skin coverings such as fur, hair,
and feathers in mammals and birds is a result of which of the
following evolutionary processes?
Answer: convergent evolution
◉ Stages in the complete metamorphosis of arthropods include all
of the following except the ________ stage.
Answer: nymph
◉ Cephalopods are the only molluscs ________
Answer: with a closed circulatory system
◉ In arthropods, molting is necessary because _________
, Answer: the chitinous exoskeleton cannot grow
◉ The phylum __________ has both invertebrate and vertebrate
groups.
Answer: Chordata.
◉ Invertebrate deuterstomes that are bilaterally symmetrical as
juveniles but have radial symmetry as adults are called _________.
Answer: Echinoderms.
◉ A major characteristic of arthropods is __________.
Answer: a chitinous exoskeleton.
◉ The three main body parts of the phylum Mollusca are a
___________.
Answer: muscular foot, a visceral mass, and a mantle
◉ Primates are distinguished from other mammals by __________.
Answer: opposable thumbs, nails, and good depth perception
◉ Which of the following animals is an amphibian?
Answer: caecilian
CONTENT QUESTIONS AND ANSWERS
COMPLETE SET
◉ Which of the following claims about human evolution is most
consistent with current scientific understanding?
Answer: Humans and other apes represent divergent lines of
evolution from a common ancestor.
◉ The evolution of similar insulating skin coverings such as fur, hair,
and feathers in mammals and birds is a result of which of the
following evolutionary processes?
Answer: convergent evolution
◉ Stages in the complete metamorphosis of arthropods include all
of the following except the ________ stage.
Answer: nymph
◉ Cephalopods are the only molluscs ________
Answer: with a closed circulatory system
◉ In arthropods, molting is necessary because _________
, Answer: the chitinous exoskeleton cannot grow
◉ The phylum __________ has both invertebrate and vertebrate
groups.
Answer: Chordata.
◉ Invertebrate deuterstomes that are bilaterally symmetrical as
juveniles but have radial symmetry as adults are called _________.
Answer: Echinoderms.
◉ A major characteristic of arthropods is __________.
Answer: a chitinous exoskeleton.
◉ The three main body parts of the phylum Mollusca are a
___________.
Answer: muscular foot, a visceral mass, and a mantle
◉ Primates are distinguished from other mammals by __________.
Answer: opposable thumbs, nails, and good depth perception
◉ Which of the following animals is an amphibian?
Answer: caecilian
