WorksheetsMacroinvertebrates & Dissection
Total questions: 40
Worksheet time: 1hrs 20mins
Identify this organism.
orb snail
dobsonfly larvae
dragonfly nymph
pouched snail
Which of the following is NOT true about aquatic macroinvertebrates?
Found in water
Big enough to be seen without a microscope
Has a backbone
Does not have a backbone
What is this?
stonefly nymph
centipede
mayfly nymph
Dobsonfly larvae (hellgramite)
Which of these are NOT all examples of the macroinvertebrates?
Damselfly nymph, Cranefly larvae, Midgefly larvae
Water Boatman, Scud, Crayfish, Water Penny
fish, salamanders, frogs
Leech, Pouched Snail, clam
What kind of organisms are we referring to when we say "macroinvertebrate?"
animals we cannot see with naked eyes
animals with backbones - fish/salamander/frogs...etc
animals we can see and have no backbones
any living things
Which aquatic habitat contains the fewest species and why?
Water's Edge - food and shelter
Surface Film - Oxygen
Open Water- no food or shelter
Bottom - food and no shelter
These organisms are the best “bioindicators” of water quality:
aquatic mammals
fish
macroinvertebrates
amphibians
Which organism is a good indicator of high levels of organic pollution or human/animal waste?
pollution sensitive - 1
somewhat pollution sensitive -2
pollution tolerant -3
Leeches, aquatic worms, pouched snails, and water striders are
Pollution tolerant - 3
Somewhat pollution sensitive - 2
Pollution Sensitive - 1
None of the above
What is it?
caddisfly larvae
giant water bug
mayfly nymph
crayfish
Why are macroinvertebrates better than chemical tests to determine water quality?
their pollution sensitivity levels
some live in the water 1 to 4 years
cannot move far or fast to escape pollution
All of the these
How many pollution sensitivity categories are there for macroinvertebrates?
2
3
4
5
What is the name of the structure indicated?
swimmerets
gills
carapace
maxilipeds
What is the name of the structure indicated by the arrow?
Telson
Antennule
Maxilliped
Cheliped
What is the exoskeleton of a crayfish called?
Gastropod
Crustacea
Crust
Carapace
The crayfish belongs to which phylum which means "jointed foot"?
Crustacea
Arthropoda
Animalia
Decapoda
The crayfish belongs to which class that means "Flexible shell"?
Crustacea
Arthropoda
Animalia
Decapoda
Which kingdom do Crayfish belong to?
Arthropoda
Decapoda
Crustacea
Animalia
Identify #1 structure
antennae
cephalothorax
chilapeds
walking legs
Where are a crayfish's teeth located?
mouth
mandible
stomach
tail
Which of the following is a physical adaptation of the crayfish?
teeth in the stomach
nocturnal - hunt at night
release chemicals to mate
create burrows to live in
What is the function of the antennae on the crayfish - what do they do?
defense
see
touch and taste
balance
How do crayfish swim?
backward with the telson and uropod
forward with the walking legs
backward with the swimmerets
backward with the carapace
Which of the following is an example of point source pollution?
fertilizer in runoff
oil spills
runoff with trash trash
pesticides in runoff
Which of the following is a nonpoint source pollutant?
Oil Spill
Industrial Accident
Industrial Waste
Trash in runoff
How can you tell if a bullfrog is male or female?
Size of the tympanum compared to the eye
male bullfrogs are bigger than females
female bullfrogs are bigger than males
Males are darker in color
Where do bullfrogs store their energy?
liver
fat bodies
spleen
stomach
What class do bullfrogs belong to that means "double life"?
crustacea
rajidae
anura
amphibia
What is the opening the bullfrog uses to release eggs, sperm, waste, and urine?
colon
anus
cloaca
esophagus
What external part of the frog is the clear membrane covering the eye that protects and keeps it clean?
tympanic membrane
nictitating membrane
skin
eyelid
Where is the tongue attached?
front of mouth
back of mouth
side of mouth
front and back of the mouth
Which of the following best describes the special adaptation of a frog tongue?
It attaches at the front of the mouth so that it can flip out to catch prey.
It attaches at the front of the mouth so that it can be used to create sounds that attract mates.
It attaches at the back of the mouth so that it can flip out to catch prey.
It attaches at the back of the mouth so that it can swallow its prey whole.
The covering over the ear of the frog known as the eardrum is called:
Eustachian tubes
Tympanic membrane or Tympanum
Nictitating membrane
Glottis
Two knob-like backward slanting teeth, located on the roof of the mouth of the frog
Vomerine teeth
Nictitating membrane
Tympanic membrane
Eustachian tubes
