Actinopterygii

Question 1 of 29

1

Actinopterygii are the...

Select one of the following:

ray-finned fishes
lobe-finned fishes

Explanation

Question 2 of 29

1

Actinopterygii are the most diverse group of all aquatic vertebrates

Select one of the following:

True
False

Explanation

Question 3 of 29

1

70% of extant ray-finned fishes are teleosts.

Select one of the following:

True
False

Explanation

Question 4 of 29

1

Check all characters of teleosts

Select one or more of the following:

jaw mobility
homocercal tails
lunate tails
fused jaws

Explanation

Question 5 of 29

1

Check the non-teleost ray-finned fishes

Select one or more of the following:

Polypteriformes
Lepisosteiformes
Amiformes
Osteoglossomorpha

Explanation

Question 6 of 29

1

Osteoglossomorpha are the most primitive teleosts.

Select one of the following:

True
False

Explanation

Question 7 of 29

1

Osteoglossomorpha means...

Select one of the following:

"bony tongues"
"primitive fish"
"big mouth"
"slippery fish"

Explanation

Question 8 of 29

1

Chack characters of Clade Elopomorpha

Select one or more of the following:

Most eel-like
Specialized leptocephalus larva
most compressiform
spawn in same region of atlantic

Explanation

Question 9 of 29

1

Clade Otocephala is separated into two groups:

❌ (herrings, shad, sardines, anchovies)
❌ (catfishes, milkfish, carps, suckers...)

Drag and drop to complete the text.

Clupeomorpha

Perciformes

Ostariophysi

Euteleostei

Explanation

Question 10 of 29

1

Check characters of Clupeomorpha

Select one or more of the following:

silver
mostly marine
springtime migrations greatly reduced now
alarm pheromone synapomorphy
predominant in freshwater

Explanation

Question 11 of 29

1

Check characters of Ostariophysi

Select one or more of the following:

Alarm pheromone synamorphy
Predominant in freshwater
Weberian apparatus
greatly enhanced hearing sensitivity due to gas bladder used as amplifier
mostly marine

Explanation

Question 12 of 29

1

What is the Weberian apparatus in Ostariopysi?

Select one of the following:

small bones that connect gas bladder with inner ear
an organ that releases a chemical signal into the water when wounded
vestigial organ related to lung

Explanation

Question 13 of 29

1

Which group of Clade Otocephala releases a chemical signal into the water upon being wounded?

Select one of the following:

Clupeopmorpha
Ostariophysi

Explanation

Question 14 of 29

1

Check characters of Clade Euteleostei

Select one or more of the following:

Vast majority of extant teleosts
Esocidae and Salmonidae
wide diversity of body forms related to habitat and habits
"true teleosts"
smallest clade of teleost

Explanation

Question 15 of 29

1

In most ray-finned fish, swimming (propulsion) is mostly is done with the...

Select one of the following:

muscles of posterior region of trunk and caudal peduncle
paired fins
lateral line
dorsal fin

Explanation

Question 16 of 29

1

In most ray-finned fish, steering is mainly done with the...

Select one of the following:

paired fins
posterior region of the trunk and caudal peduncle
lateral line
dorsal fin

Explanation

Question 17 of 29

1

This term refers to fish whose swimming style involves bending in more than half a sinusodial wavelenghth.

Select one of the following:

Anguilliform
Carangiform
Labriform
Rajiform

Explanation

Question 18 of 29

1

This term refers to fish whose swimming method involves undulations mostly limited to the caudal region:

Select one of the following:

Carangiform
Anguilliform
Ostraciiform
Amiiform

Explanation

Question 19 of 29

1

This term refers to fish whose swimming method involves undulation limited to caudal fin due to an inflexible body.

Select one of the following:

Ostraciiform
Labriform
Carangiform
Balistiform

Explanation

Question 20 of 29

1

This term refers to fish whose swimming method uses the pectoral fins for most of the force of locomotion, and very little use of the caudal fin.

Select one of the following:

Labriform
Gymnotiform
Ostraciiform
Rajiform

Explanation

Question 21 of 29

1

❌: sine waves passed along elongated pectoral fins

❌: sine waves passed along elongated dorsal fin

❌: sine waves passed along elongated anal fin

❌: sine waves passed along elongated dorsal and anal fins

Drag and drop to complete the text.

Rajiform

Amiiform

Gymnotiform

Balistiform

Explanation

Question 22 of 29

1

Label the forms of locomotion

Drag an answer into the correct orange point.

Rajiform

Gymnotiform

Amiiform

Anguilliform

Balistiform

Carangiform

Ostraciform

Labriform

Subcarangiform

Modified Carangiform

Explanation

Question 23 of 29

1

Select from the dropdown lists to complete the text.

( Viscous, Inertial ) drag (frictional) ( is relatively constant, increases ) over range of speed and is sensitive to ( surface area, body shape ).

( Inertial, Viscous ) drag (pressure differences as result of water displacement) ( increases, is relatively constant ) as speed increases and is sensitive to ( body shape, surface area ).

Explanation

Question 24 of 29

1

Select from the dropdown lists to complete the text.

Thin bodies induce ( viscous, inertial ) drag because of the ( large, small ) surface area relative to muscle mass, but thick bodies induce ( inertial, viscous ) drag due to the ( large, small ) cross-sectional area of the body.
Scaleless skin has ( low, high ) viscous drag. Streamlined shapes produces ( minimal, maximal ) inertial drag.

Explanation

Question 25 of 29

1

Which form of locomotion typically produces the fastest swimmers?

Select one of the following:

Modified Carangiform
Rajiform
Angilliform
Subcarangiform

Explanation

Question 26 of 29

1

❌ fishes: vertical nocturnal migrations to forage closer to surface with light availability

❌ fishes: photphores, naked retinas, large mouths and stomachs

Drag and drop to complete the text.

Mesopelagic

Bethypelagic

Explanation

Question 27 of 29

1

Check all that apply to Deapsea habitat/fishes

Select one or more of the following:

no light
low food availability
smaller fishes
sparse populations
high food availability
dense populations
larger fishes

Explanation

Question 28 of 29

1

Assemblages of vertebrates on coral reefs have low diversity.

Select one of the following:

True
False

Explanation

Question 29 of 29

1

Why are many fish who live beneath the euphotic zone bright red?

Select one of the following:

The bright color warns predators that they are toxic.
The brighter the color, the more likely they are to achieve a mate.
Because red light does not extend past the euphotic zone, so the fish can blend in with their surroundings.
Because they're drama queens.

	Created by Jo O'Bar about 6 years ago

Biology (Marine Vertebrates) Quiz on Actinopterygii, created by Jo O'Bar on 13/10/2018.

Actinopterygii

Actinopterygii

Question 1 of 29

Actinopterygii are the...

Select one of the following:

Explanation

Question 2 of 29

Actinopterygii are the most diverse group of all aquatic vertebrates

Select one of the following:

Explanation

Question 3 of 29

70% of extant ray-finned fishes are teleosts.

Select one of the following:

Explanation

Question 4 of 29

Check all characters of teleosts

Select one or more of the following:

Explanation

Question 5 of 29

Check the non-teleost ray-finned fishes

Select one or more of the following:

Explanation

Question 6 of 29

Osteoglossomorpha are the most primitive teleosts.

Select one of the following:

Explanation

Question 7 of 29

Osteoglossomorpha means...

Select one of the following:

Explanation

Question 8 of 29

Chack characters of Clade Elopomorpha

Select one or more of the following:

Explanation

Question 9 of 29

Clade Otocephala is separated into two groups: ❌ (herrings, shad, sardines, anchovies) ❌ (catfishes, milkfish, carps, suckers...)

Drag and drop to complete the text.

Explanation

Question 10 of 29

Check characters of Clupeomorpha

Select one or more of the following:

Explanation

Question 11 of 29

Check characters of Ostariophysi

Select one or more of the following:

Explanation

Question 12 of 29

What is the Weberian apparatus in Ostariopysi?

Select one of the following:

Explanation

Question 13 of 29

Which group of Clade Otocephala releases a chemical signal into the water upon being wounded?

Select one of the following:

Explanation

Question 14 of 29

Check characters of Clade Euteleostei

Select one or more of the following:

Explanation

Question 15 of 29

In most ray-finned fish, swimming (propulsion) is mostly is done with the...

Select one of the following:

Explanation

Question 16 of 29

In most ray-finned fish, steering is mainly done with the...

Select one of the following:

Explanation

Question 17 of 29

This term refers to fish whose swimming style involves bending in more than half a sinusodial wavelenghth.

Select one of the following:

Explanation

Question 18 of 29

This term refers to fish whose swimming method involves undulations mostly limited to the caudal region:

Select one of the following:

Explanation

Question 19 of 29

This term refers to fish whose swimming method involves undulation limited to caudal fin due to an inflexible body.

Select one of the following:

Explanation

Question 20 of 29

Clade Otocephala is separated into two groups:

❌ (herrings, shad, sardines, anchovies)
❌ (catfishes, milkfish, carps, suckers...)

❌: sine waves passed along elongated pectoral fins

❌: sine waves passed along elongated dorsal fin

❌: sine waves passed along elongated anal fin

❌: sine waves passed along elongated dorsal and anal fins

❌ fishes: vertical nocturnal migrations to forage closer to surface with light availability

❌ fishes: photphores, naked retinas, large mouths and stomachs