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WorksheetsAquatics Semester Exam 2020 (Replacement Grade)
Total questions: 124
Worksheet time: 1hrs 2mins
What superclass do sharks, rays, and skates belong to?
Chondrichthyes
Osteichthyes
Rajiformes
Batoids
How many species of sharks are there?
1400
440
550
200
Which of the following help you to easily identify a shark's diet?
their tooth style
their body shape
their number of fins
where they live
What would a shark with small, needle like teeth eat?
smaller fish
crustaceans and mollusks
krill
large mammals
Which of the following is the subclass that sharks and rays belong to?
Elasmobranchii
Holcephali
Chimerocephali
Octobranchii
Stingrays have venomous _____ that protects them.
tongues
barbs
tails
spines
How do sharks produce new blood cells?
liver
stomach
capillary beds
spleen
Sharks have color vision.
True
False
Sharks tend to hunt at night because they have such keen vision/excellent night vision. What is responsible for their excellent source of night vision?
large eyes
nictating eyelids
taptum lucidum
color vision
Sharks skeletons are hard to fossilize due to their skeleton's composition. Which portions are usually found fossilized due to being more calcified?
jaw, teeth, vertebrae
vertebrae and ribs
entire skeleton
jaw, teeth, fins
How many species of rays are there?
200
560
450
680
Sharks teeth fall out very easily. Due to this trait, which of the following is true about sharks?
they can continually replace their teeth throughout their life
their teeth are embedded in their cartilage jaw
their teeth are embedded in their gums
they keep all their teeth through their life
What reproductive disadvantages do sharks and rays face?
birth few young at one time
reach sexual maturity late in life
live solitary lives
reach sexual maturity early in life
Wht is the largest type of ray?
Stingray
Horn ray
Manta Ray
Bat Ray
What adaptations do rays have that makes them different from sharks?
their mouths are on the bottom of their body
their gills are on the bottom of their body
their pectoral fins are enlarged and fused to their body
all of these
What type of skeleton do fish in class Chondrichthyes possess?
bony
epigonal
cartilaginous
placoid
Which of the following are included in Rhinochimaeridae?
elephant fish and ghost shark
ratfish and rabbitfish
spookfish and sicklefin chimeras
manta ray and stingray
Which of the following are included in Callorhinchidae?
elephant fish and ghost shark
ratfish and rabbitfish
spookfish and chimeras
manta ray and stingray
Which of the following are included in Chimaeridae?
elephantfish and ghost shark
ratfish and rabbitfish
spookfish and sicklefin chimera
manta ray and stingray
How do ALL skates reproduce?
lay eggs
give live birth
Which of the following is the subclass that Chimaeras belong to?
Elasmobranchii
Holcephali
Chimerocephali
Octobranchii
Which of the following do chimaeras have that sharks and rays do not?
a bony skeleton instead of cartilage
an operculum to cover their gills
an anal fin
sharp teeth
Chimaeras have a fused jaw.
True
False
Chimaeras can survive at depths over 8200 ft.
True
False
What do manta rays eat?
large mammals
crabs
fish
krill
How do chimaeras give birth?
lay eggs
give live birth
Since chimaeras lay egges, they are considered to be _____.
oviparous
viviparous
Which of the following describe the type of teeth Chimaeras have?
teeth that are easily replaced like sharks
three tooth plates that are used for grinding
rows of sharp teeth like some sharks
tiny filter teeth like whale sharks
What superorder do rays, skates and most sawfish belong to?
Batoidea
Prisiforms
Chondrichthyes
Chimaeridae
Dogfish are considered ovoviviparous. What does this mean?
they lay eggs
they give live birth
they hatch internal eggs to then give live birth
What is unique about how rays swim in comparison to most fish?
they use most of their pelvic fins to glide in the water
they use their dorsal fins as their main propelling forces
they use their pectoral fins as their main swimming force
they use their spine to ungulate forward like dolphins
Which of the following are a part of the group Rajiformes?
guitarfish and banjo sharks
skates
electric rays
stingrays and eagle rays
Which of the following are a part of Myliobotiforems?
guitarfish and banjo sharks
electric rays
skates
stingrays and eagle rays
Which of the following are a part of the group Rhinobatiformes?
guitarfish and banjo sharks
skates
electric rays
stingrays and eagle rays
Which of the following are a part of the group Torpediniformes?
sawfish
skates
electric rays
stingrays and eagle rays
Which of the following are a part of the group Prisiforms?
sawfish
skates
guitarfish
stingrays
Which of the following is, or are, considered defense mechanisms of rays?
poisonous barbs and spines
whip-like tail
electric shock
all of these
What is the phylum skates are classified as?
chordata
arthropoda
mollusca
nematoda
What is a skate's lateral line used for?
detecting electromagnetic fields
stinging predetors
detecting vibrations/movement
producing electric volts
What type of symmetry do skates have?
radial
spherical
asymmetry
bilateral
Which of the following are fins that the skates possess two of?
pectoral
pelvic
dorsal
all of these
Gender of a skate is easily determined because _____.
males have two cloacas while females only contain one.
males have claspers while females do not.
females have claspers for bearing eggs while males do not.
females have claspers while males have cloacas.
How is a skate's heart different from a human's heart?
it has 3 chambers instead of 4
it is much larger
it is much smaller
it has 2 chambers instead of 4
Why is the spiracle important to skates?
it helps provide oxygen to the skate
it allows the skates to rest on the bottom of the ocean
it allows skates to strike and kill prey
it allows skates to float at the surface of the water
What are papillae?
projections in the esophagus
folds in the intestines
folds in the stomach
projection on the tongue
What is the function of papillae?
to aide in removing excess water from food
to aide in crushing food during digestion
to allow for expansion when consuming food
to aide in trapping and moving food to the stomach
What are rugae?
folds in the esophagus
folds in the intestines
folds in the stomach
projections on the tongue
What is the function of rugae?
to aide in removing excess water from food
to aide in crushing food during digestion
to allow for expansion when consuming food
to aide in moving food from esophagus to stomach
The mouth and gills of a skate are located _____.
dorsally
ventrally
The spiracle of a skate is located _____.
dorsally near the tail
ventrally near the tial
dorsally near the eyes
ventrally near the eyes
How many gill openings does a skate have?
7 on each side
5 on each side
6 on each side
4 on each side
What is the largest organ in the abdominal cavity of the skate?
intestines
heart
pyloric stomach
liver
Why is the liver so important to the skate?
produces oil that aides in swimming
produces oil that aides in immunity
produces oil that aides in buoyancy
produces new red blood cells due to the lack of bone marrow
What are the names of the two stomachs of the skate?
pyloric and cardiac
cardiac and mesentery
digestive and pyloric
amylase and pepsin
The pyloric stomach is used for beginning digestion, of the skate.
True
False
The cardiac stomach is used for controlling the heartbeat, of the skate.
True
False
Why is a spiral intestine so important to a skate?
allows for excess water absorption
allows for full digestion of food to gain the most energy
allows for maximum nutrient absorption
allows for filtration of good vs bad stuff in the water
The deep ocean is defined as the portion of the ocean that includes anything beyond the 1000 meter depth mark. Which of the following layers is NOT included in the deep ocean?
Epipelagic
Hadopelagic
Bathypelagic
Abyssopelagic
Photophores aide in producing bioluminescence to help organisms find mates, find prey, or warn off predators; but it can also be used for breaking up the silhouette of an organism for camouflage. Which of the following is a term that describes the process of using photophores to appear lighter on top and darker on bottom?
transparency
counter illumination
photoshading
photoshopping
Which of the following describes the photic zone that supports photosynthetic organisms and reaches depths of up to 150 meters.
epipelagic
mesopelagic
hadopelagic
bathypelagic
Which of the following is the layer of the ocean where thermocline happens?
epipelagic
mesopelagic
bathypelagic
abyssopelagic
What depth, or point, in the ocean does light not reach past?
150 meters
500 meters
1000 meters
2500 meters
Since light does not reach the deep ocean, what do deep ocean organisms rely on to help provide energy to them?
photosynthetic organisms
chemosynthetic organisms
cephalopods
syntersynthetic organisms
Are rods or cones more developed in deep ocean fish?
rods
cones
What percentage of food made in the epipelagic region reaches the mesopelagic region?
10%
20%
30%
40%
Deep ocean organisms might have collapsible lungs, which helps with _____.
pressure
temperature
lack of oxygen
lack of food
Some deep ocean organisms have swim bladders filled with fat. This helps with _____ regulation.
pressure
temperature
food
oxygen
Deep ocean organism are small in size. This is due to _____.
lack of light
lack of food
lack of oxygen
lack of pressure
Bioluminescence is a characteristic that most deep ocean organisms have. This is an adaptation due to the _____.
lack of sunlight
lack of food
lack of oxygen
lack of pressure
Deep ocean organisms have modified hemoglobin because of the low _____ levels.
oxygen
carbon dioxide
methane gas
sodium
Deep ocean organisms typically have large, light sensitive eyes. This adaptation is due to the lack of _____.
light
darkness
oxygen
carbon dioxide
Deep ocean organisms have a vertical migration pattern due to the lack of _____.
light
food
predators
oxygen
Deep ocean organisms have large mouths and expandable stomachs. This adaptation is due to the lack of _____.
light
darkness
food
predators
Deep ocean organisms are slow swimmers and lack swift movements due to the lack of _____ and ______.
food, oxygen
food, carbon dioxide
oxygen, carbon dioxide
food, light
5% of food made in the epipelagic region reaches the bathypelagic region.
True
False
Which of the following zones is bioluminescence most common?
mesopelagic
epipelagic
bathypelagic
abyssopelagic
Which of the following are the two types of fish that make up about 90% of the fish in the mesopelagic?
angler fish and hatchet fish
bristlemouths and lantern fish
jellyfish and bristlemouths
lantern fish and angler fish
Many females in the deep ocean release a chemical to attract males appealing to their sense of smell since it is hard to see in the deep ocean. Which of the following terms can be used to describe this type of mating?
male parasitism
sperm packs
bioluminescence
phermones
Group of organisms dominated by mostly krill, shrimp, and copepods.
zooplankton
cephalopods
chaetognaths
cnidarians
Group of modified mollusks that include squid and octopus.
cephalopods
chaetognaths
cnidarians
ostracods
Group of worms that are predatory and belong to the zooplankton group.
chaetognaths
cnidarians
ostracods
cephalopods
Group of organisms that contain a jelly-like substance covered in a thin, flexible skin.
cnidarians
ostracods
zooplankton
cephalopods
Group of organisms that resemble clams, but contain legs making them crustaceans.
ostracods
cnidarians
zooplankton
cephalopods
James Cameron was the first to complete a solo dive to the bottom of the Marianas Trench.
True
False
Which of the following were the first humans to visit the deep ocean in their steel bathysphere?
Beebe and Barton
Watson and Crick
Ross and Thomas
Cameron and Cousteu
Which of the following zones is the Marianas Trench a part of?
Abyssopelagic
Bathypelagic
Hadopelagic
Mesopelagic
Which of the following scientist conducted the first "deep sea" exploration aboard the HMS Challenger?
John Ross
Otis Barton
Charles Darwin
Charles Wyville Thomas
Which of the following is the most recent project that was just launched in 2017?
Seabed 2030
Geostat 2030
Chemosynthesis 2030
Bathysphere 2030
Why is it beneficial to live on the ocean floor in deep sea communities?
some of these organisms have the potential to live near producers to help with food production
some organisms can live in communities to rely on each other for mating and scavenging for food
sometimes large organisms die and sink to the bottom of the ocean, providing a large amount of food for other organisms for months at a time
all of these
Most mesopelagic organisms live solitary lives, while organisms on the ocean floor can tend to find communities more beneficial.
True
False
Which group of marine mammals contains the fastest swimmers?
Seals
Sea Lions
Baleen Whales
Toothed Whales
Which of the following is the only strict herbivore of the marine mammal group?
dugongs
polar bears
otters
sea lions
What is unique about the whale group's nostril?
it has developed tissue for producing sound
it is located on the dorsal portion of the head
it is used for deep sea dives in the ocean to relieve pressure on their lungs
it is located on the ventral portion of the head
What do sea otters lack that most mammals have?
blubber
ears
teeth
hemoglobin
Why is echolocation found in some marine mammals and the ability to produce sound in all mammals such a beneficial adaptation to marine mammals?
terrestrial mammals can't produce sound
it helps marine mammals confuse their prey
sound travels faster in water than on land
terrestrial mammals do not use sound for survival
Seals have external ears, long necks, and the capability to walk easily on land.
True
False
Which of the following is described as a hunting technique that humpback whales use by swimming toward each other to create a small circle and enclose prey to eat using bubbles?
bubble-netting
breaching
synchronized netting
tail-slapping
What whale is believed to have the most developed sonar ability?
humpback whale
blue whale
dolphin
baluga whale
Whale group that has teeth, like orcas.
Odontoceti
Pinnipedia
Sirenia
Carivora
Group of strictly marine mammals, known as "sea cows".
Sirenia
Carnivora
Cetecea
Mysticeti
Group of marine mammals including whales and dolpins.
Cetecea
Pinnipedia
Mysticeti
Oodntoceti
Group of marine mammals that include seals and walruses.
Pinnipedia
Mysticeti
Odontoceti
Sirenia
Whales that lack teeth and instead have tooth plates.
Mysticeti
Carnivora
Odontoceti
Sirenia
Group of marine mammals that includes sea otters and polar bears.
Carnivora
Odontoceti
Sirenia
Cetecea
Which of the following describes what a homeotherm is?
the organism has blubber
the organism is able to maintain a near-constant body temperature
the organism lives full time in the water
the organism is a carnivore
Marine Mammals breath _____
with adapted gills so they can stay underwater for long periods of time
with adapted spiracles that close off when they dive
with lungs, they must come up to the surface and then hold their breath while under water
with both lungs and gills, which is why they can stay under water for long periods of time
Which of the following includes a technique that polar bears use to cool themselves?
black skin
swimming
hollow hair shafts
lying on their backs in the snow
What polar bear feature is one of the most important features to its survival?
black skin
large feet with denticles
white fur
large teeth
What is the largest dolphin species?
bottlenose
blackspotted
sand
orcas
Many marine mammals take care of their young unlike most marine animals.
True
False
Which of the following group of mammals are strict herbivores?
Carnivora
Pinnipedia
Cetecea
Sirenia
How do dolphins, otters, and manatees propel themselves forward when swimming?
using their caudal fin
relying heavily on their front appendages, flukes, or arms
undulating their spine up and down
their back fins or legs
Otters are considered a keystone species in kelp forests because they help control the sea urchin population.
True
False
Whales can only eat about 10% of their body weight in food a day.
True
False
Why do walruses turn white when they are swimming in the ocean?
their skin sheds the top layer creating a new white layer
their blood vessels constrict only circulating blood to their vital organs
their skin dies creating a white layer due to lack of blood
they live too deep in the ocean to get any pigment from the sun
How many limbs do manatees and dugongs possess?
4, two hind flippers and two fore flippers
3, two fore flippers and one pelvic flipper
2, two fore flippers
1, one pelvic flipper
What is delayed implantation?
when a sperm pack will not fertilize an egg for several months
when a fertilized egg will not implant into uterine wall for several months
when an egg won't fertilize at all due to infertility
when a sperm pack does not survive, creating infertility
Which of the following whale sounds are used for communication between the species?
clicks
burst-pulse sounds
whistles
screeches
Whales can use sounds to locate organisms in the water, similar to how sonar works. Which of the following terms correctly matches the definition being described?
electromagnetic location
echolocation
olfactory location
optic location
In echolocation, which whale species has a very keen ability to perform this?
dolphins
orcas
narwhals
beluga whales
What behavior characteristic separates the subgroups of pinnipeds?
their diet
the oceans they occupy
their movement
their hunting techniques
What type of seal is notorious for preying on penguins?
California Sea Lion
Elephant Seal
Weddell Seal
Leopard Seal
Seals and sea lions share many features since they are a part of the same suborder. Which of the following correctly describes how they move?
True seals use their hind flippers as their main swimming flippers
Sea lions use their hind flippers as their main swimming flippers
YOU MADE IT!!!!!!!!!!!!!!!!!
Thank goodness I am done with this course! Thank you, Mrs. Grider, for the extra opportunity to pass Aquatic Science! ;)
(this is not the correct answer)
