Solutions
Acarines differ from all other arachnids in having complete
fusion of the __________ and abdomen. Correct Answers
cephalothorax
Adult Ascaris worms are found in the host's __________.
Correct Answers intestines
Androgenic glands in the amphipod function to Correct Answers
stimulate expression of male characteristics.
As part of your lab assignment, you are charged with
summarizing the characteristics of the appendages of a crayfish.
After you observe the appendages, you can conclude that the
appendages include:
A telson.
Two pairs of abdominal swimmerets that are different in males
and females.
All of the choices listed are crayfish appendages.
Two large pincers.
Two branches on all appendages. Correct Answers All of the
choices listed are crayfish appendages.
, As the arthropod ancestors underwent "arthropodization,"
Correct Answers Intersegmental septa became unnecessary.
Centipedes Correct Answers have poison claws.
Chelicerate arthropods possess Correct Answers pedipalps.
Dog heartworm is caused by Correct Answers Dirofilaria
nematodes.
During mating in spiders, the male inserts his __________ into
the genital opening of the female. Correct Answers pedipalps
Elephantiasis is an enlargement of legs, arms, scrotum, and other
tissues caused by Correct Answers microscopic nematodes that
reproduce and clog lymph glands, causing infection and limbs to
swell.
Elephantiasis is transferred by Correct Answers mosquitoes
injecting larval worms into the bloodstream.
Eurypterids Correct Answers are extinct.
Four classes of myriapods are Chilopoda, Pauropoda, Symphyla
and __________. Correct Answers Diplopoda
Groups of segments fused or combined into functional groups
are called __________. Correct Answers tagmata
How do crustaceans differ from other arthropod groups? Correct
Answers Crustaceans have two pairs of antennae.