Stuvia.com - The Marketplace to Buy and Sell your Study Material
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
2024 Chordates Exams (All Answered Correctly)
What 5 features do all chordates have for at least some period of their life cycles? correct
answers notochord, hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail
Name the 3 subphyla of the phylum chordata. correct answers cephalochordata, urochordata,
vertebrata
About how many species of cephalochordata are there? correct answers 25
Where do cephalochordata inhabit? correct answers shallow tropical and temperate oceans
Are the cephalochordata a small or large branch of the animal kingdom? correct answers small
What two other names do the cephalochordata go by? correct answers lancelets or amphioxus
What does amphioxus mean? correct answers Greek for "both ends pointed"
What are cephalochordata? correct answers small, eel-like and spend much of their time buried
in the sand
What defines a cephalochordata? correct answers the presence of a notochord that persists
throughout life
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
What is another name for the urochordata? correct answers tunicata
What are urochordata commonly known as? correct answers sea squirts
Explain the body of an adult tunicate. correct answers a sack with two siphons through which
water enters and exits
Explain the body of a larvae tunicate. correct answers free-swimming and exhibits all chordate
characteristics
What happens when a larva tunicate attaches to a hard substrate? correct answers it loses its tail
and ability to move, and its nervous system largely disintegrates
What does pelagic mean? correct answers in the open seas
Some tunicates, called salps, live where? correct answers they're pelagic
Describe salps. correct answers tunicates that typically have barrel-shaped bodies and may be
extremely abundant in the open ocean
What are siphons? correct answers tubular openings through which they draw in and expel water
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
Downloaded by: Examcenter | Want to earn $1.236
Distribution of this document is illegal extra per year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
Define ectoderm correct answers one of the 3 primary germ layers in the very early embryo
What two embryonic features are unique to chordates? correct answers notochord and dorsal
hollow nerve chord
The dorsal hollow nerve chord forms what? correct answers the central nervous system
What is the central nervous system made up of? correct answers the brain and spinal chord
What does the dorsal hollow nerve chord originate as? correct answers a plate of dorsal ectoderm
just above (dorsal to) the developing notochord
Describe how the dorsal hollow nerve chord is formed. correct answers the "neural plate" (aka
the plate of dorsal ectoderm) rolls itself into the neural tube, which will become the central
nervous system
In the phylum chordata, due to the mechanism of development, what is important about the CNS
tubes? What is different in the CNS tubes of the other animal phyla? correct answers in phylum
chordata the CNS is hollow; in other phyla the animals have solid, ventral tubes
What is the notochord? correct answers an elastic, rod-like structure that runs parallel to and
between the CNS and the digestive tract
Where is the notochord found? correct
2024 Chordates Exams (All Answered Correctly) 2024 answers
Chordates Examsin
(All all chordate
Answered Correctly) embryos 2024 Chordates Exams (All Answered Correctly)
What does the notochord do? correct answers it serves as a support structure that resists
shortening in length, but is laterally flexible
What would happen if there was no notochord? correct answers lateral muscle contraction would
collapse the body along its length
How do the chordata move side to side? correct answers they use the notochord muscle
contractions on alternating sides to efficiently flex the body from side to side
What is the notochord most often functionally replaced with? correct answers replaced by the
vertebral column in many chordate groups (the "higher" vertebrates)
The notochord's position is comparable to what in humans? correct answers vertebral centra
In adult humans and other mammals, what is preserved? correct answers the nucleus pulposus
What is the nucleus pulposus? correct answers a small gel-like region at the center of each of the
invertebral discs between adjacent vertebrae
Define vertebral centra. correct answers the body of a vertebrate
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
Downloaded by: Examcenter | Want to earn $1.236
Distribution of this document is illegal extra per year?
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
2024 Chordates Exams (All Answered Correctly)
What 5 features do all chordates have for at least some period of their life cycles? correct
answers notochord, hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail
Name the 3 subphyla of the phylum chordata. correct answers cephalochordata, urochordata,
vertebrata
About how many species of cephalochordata are there? correct answers 25
Where do cephalochordata inhabit? correct answers shallow tropical and temperate oceans
Are the cephalochordata a small or large branch of the animal kingdom? correct answers small
What two other names do the cephalochordata go by? correct answers lancelets or amphioxus
What does amphioxus mean? correct answers Greek for "both ends pointed"
What are cephalochordata? correct answers small, eel-like and spend much of their time buried
in the sand
What defines a cephalochordata? correct answers the presence of a notochord that persists
throughout life
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
What is another name for the urochordata? correct answers tunicata
What are urochordata commonly known as? correct answers sea squirts
Explain the body of an adult tunicate. correct answers a sack with two siphons through which
water enters and exits
Explain the body of a larvae tunicate. correct answers free-swimming and exhibits all chordate
characteristics
What happens when a larva tunicate attaches to a hard substrate? correct answers it loses its tail
and ability to move, and its nervous system largely disintegrates
What does pelagic mean? correct answers in the open seas
Some tunicates, called salps, live where? correct answers they're pelagic
Describe salps. correct answers tunicates that typically have barrel-shaped bodies and may be
extremely abundant in the open ocean
What are siphons? correct answers tubular openings through which they draw in and expel water
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
Downloaded by: Examcenter | Want to earn $1.236
Distribution of this document is illegal extra per year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
Define ectoderm correct answers one of the 3 primary germ layers in the very early embryo
What two embryonic features are unique to chordates? correct answers notochord and dorsal
hollow nerve chord
The dorsal hollow nerve chord forms what? correct answers the central nervous system
What is the central nervous system made up of? correct answers the brain and spinal chord
What does the dorsal hollow nerve chord originate as? correct answers a plate of dorsal ectoderm
just above (dorsal to) the developing notochord
Describe how the dorsal hollow nerve chord is formed. correct answers the "neural plate" (aka
the plate of dorsal ectoderm) rolls itself into the neural tube, which will become the central
nervous system
In the phylum chordata, due to the mechanism of development, what is important about the CNS
tubes? What is different in the CNS tubes of the other animal phyla? correct answers in phylum
chordata the CNS is hollow; in other phyla the animals have solid, ventral tubes
What is the notochord? correct answers an elastic, rod-like structure that runs parallel to and
between the CNS and the digestive tract
Where is the notochord found? correct
2024 Chordates Exams (All Answered Correctly) 2024 answers
Chordates Examsin
(All all chordate
Answered Correctly) embryos 2024 Chordates Exams (All Answered Correctly)
What does the notochord do? correct answers it serves as a support structure that resists
shortening in length, but is laterally flexible
What would happen if there was no notochord? correct answers lateral muscle contraction would
collapse the body along its length
How do the chordata move side to side? correct answers they use the notochord muscle
contractions on alternating sides to efficiently flex the body from side to side
What is the notochord most often functionally replaced with? correct answers replaced by the
vertebral column in many chordate groups (the "higher" vertebrates)
The notochord's position is comparable to what in humans? correct answers vertebral centra
In adult humans and other mammals, what is preserved? correct answers the nucleus pulposus
What is the nucleus pulposus? correct answers a small gel-like region at the center of each of the
invertebral discs between adjacent vertebrae
Define vertebral centra. correct answers the body of a vertebrate
2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly) 2024 Chordates Exams (All Answered Correctly)
Downloaded by: Examcenter | Want to earn $1.236
Distribution of this document is illegal extra per year?
