S235 - MODULE 11 PRACTICE EXAM QUESTIONS AND ANSWERS
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S235
S235 - MODULE 11 PRACTICE EXAM QUESTIONS AND ANSWERS
While the ___________ of the hydra are triggered by pressure, the ___________ of the sea anemone are trigger by a complex _____________________. - Answer-While the nematocysts of the hydra are triggered by pressure, the nematocysts of the se...
S235 - MODULE 11 PRACTICE
2024-2025 EXAM QUESTIONS AND
ANSWERS
While the ___________ of the hydra are triggered by pressure, the ___________ of the
sea anemone are trigger by a complex _____________________. - Answer-While the
nematocysts of the hydra are triggered by pressure, the nematocysts of the sea
anemone are trigger by a complex chemical recognition system.
Corals are also members of phylum ___________ that use the _______ form. - Answer-
Corals are also members of phylum Cnidaria that use the polyp form.
In the life cycle of a jellyfish, sexual reproduction occurs in the ________ form, and
asexual reproduction occurs in the ________ form. - Answer-In the life cycle of a
jellyfish, sexual reproduction occurs in the medusa form, and asexual reproduction
occurs in the polyp form.
Segmented worms are in phylum ________. - Answer-Segmented worms are in phylum
Annelida.
In order to move, the earthworm uses its posterior ______ to anchor its posterior end
while it contracts its ________ muscles, stretching the earthworm out. This pushes the
________ end forward. Once these muscles have contracted completely, the
earthworm then uses it anterior _____ to anchor its anterior end releases its posterior
_____. After that, the __________ muscles contract, causing the ________ end to
move forward. - Answer-In order to move, the earthworm uses its posterior setae to
anchor its posterior end while it contracts its circular muscles, stretching the earthworm
out. This pushes the anterior end forward. Once these muscles have contracted
completely, the earthworm then uses it anterior setae to anchor its anterior end releases
its posterior setae. After that, the longitudinal muscles contract, causing the posterior
end to move forward.
The earthworm ingests soil into its mouth with its _______. The soil is then passed into
the ____, where it is stored for a while. Eventually, the soil makes it to the ________,
where it is ground into small pieces. The worm ________ edible materials in the
________, and the inedible materials are pushed out through the _____. The digested
food is absorbed by ________ that circulates through the walls of the intestine. The
blood _________ the digested food to cells throughout the worm's body, pushed by
contractions of the ____________. Some wastes are also gathered in small organs
called ________ which release the waste through tiny holes called ______________. -
Answer-The earthworm ingests soil into its mouth with its pharynx. The soil is then
, passed into the crop, where it is stored for a while. Eventually, the soil makes it to the
gizzard, where it is ground into small pieces. The worm digests edible materials in the
intestine, and the inedible materials are pushed out through the anus. The digested food
is absorbed by blood that circulates through the walls of the intestine. The blood
transports the digested food to cells throughout the worm's body, pushed by
contractions of the aortic arches. Some wastes are also gathered in small organs called
nephridia which release the waste through tiny holes called nephridiopores.
Earthworms absorb oxygen and release carbon dioxide through a moist layer in the
epidermis called a ________. Its nervous system is controlled by two ________ in the
anterior end of the body. Signals come to and from the ganglia through a
______________________. - Answer-Earthworms absorb oxygen and release carbon
dioxide through a moist layer in the epidermis called a cuticle. Its nervous system is
controlled by two ganglia in the anterior end of the body. Signals come to and from the
ganglia through a ventral nerve chord.
Earthworms are ___________, meaning they have both male and the female
reproductive organs. During mating, two earthworms deposit sperm (stored in their
__________________) into each other's _________________. The sperm are later
used to fertilize the eggs that are stored in the ________. The zygote produced
develops in a ________. - Answer-Earthworms are hermaphroditic, meaning they have
both male and the female reproductive organs. During mating, two earthworms deposit
sperm (stored in their seminal vesicles) into each other's seminal receptacles. The
sperm are later used to fertilize the eggs that are stored in the oviducts. The zygote
produced develops in a cocoon.
Invertebrates - Answer-Animals that lack a backbone
Vertebrates - Answer-Animals that possess a backbone
Nematocysts - Answer-Small capsules that contain a toxin which is injected into prey or
predators
Posterior end - Answer-The end of an animal that contains its tail
Hermaphroditic - Answer-Possessing both the male and the female reproductive organs
Mantle - Answer-A sheath of tissue that encloses the vital organs of a mollusk, makes
the mollusk's shell, and performs respiration
Do the vast majority of animals have backbones? - Answer-No, in fact, all but one of the
phyla in Kingdom Animalia consist of invertebrates.
How do sponges get their prey? - Answer-Collar cells pull water into the sponge, where
the algae, bacteria, and organic debris contained in the water are digested by
amoebocytes.
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