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WorksheetsNematology (SPEC 4)
Total questions: 50
Worksheet time: 48mins
Which of the following best describes nematodes?
Segmented worms
Bilaterally symmetrical
True worms
Flat worms
What do these parasitic nematodes bring to the host?
Disease
Health
Reproduction
All of the above
Which among the following living organisms is parasitized by the nematodes the most?
Humans
Animals
Plants
All are correct
What is the effect when a plant was infested by nematodes?
A. The soil where the plant was located will be infected as well.
B. There will be browning color in the leaves.
C. The plant will increase its nature’s tolerance.
D. There will be a hindrance in plants uptake of nutrients.
A, B and D
The following are means of nematodes entry to human body, except?
Mosquito bite
Eating raw food
Stepping on low level soil
Drinking contaminated water with feces
Where do free-living nematodes feed?
Protozoans
Bacteria
Nematodes
Fungi
All of the above
What do farmers use to control the parasitic nematodes in their livestock?
Drenches
nematicides
Fumigants
Mosquito trap
What type of fertilization and reproduction do nematodes possess?
Internal and sexual
Internal and asexual
External and sexual
External and asexual
What best describes the male nematodes sperm cells?
It is translucent
It is smooth
It possesses amoeboid
It has a body cavity
Which among the following tells something about the harmless nature of nematodes
They are mostly free-living.
They play a significant role in the flow of nutrient cycle.
They serve as biological insecticide
All of the above
B and C only
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
11. Vertebrates are the animals having no backbone or vertebral column.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
12. Nematodes are unnoticeable but they can thrive to varied climatic conditions.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
13. Nematodes are not totally connected to true worms.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
14. Female nematodes are much smaller than male ones because of fertilization activities.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
15. All nematodes lay eggs and they can produce up to 200,000 eggs each day.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
16. Molting is a critical event in a parasitic nematode that involve shedding of cuticle.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
17. Nematodes exhibit tissue level organization.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
18. Human-parasitic nematodes pass through the juvenile molt stage.
(a)
Directions: Write TRUE if the statement is correct. If it is wrong, write the correct term/s of the underlined word/s.
19. All nematodes are parasites.
(a)
Invertebrate Animals: Porifera
insects, spiders, crustaceans, centipedes
sponges
jelly fish, corals
sea stars, sea urchins, sea cucumbers
leeches, tapeworms
Invertebrate Animals: Mollusca
insects, spiders, crustaceans, centipedes
sponges
jelly fish, corals
sea stars, sea urchins, sea cucumbers
snails, clams, squids
Invertebrate Animals: Arthropoda
insects, spiders, crustaceans, centipedes
sponges
jelly fish, corals
sea stars, sea urchins, sea cucumbers
snails, clams, squids
Invertebrate Animals: Cnidaria
insects, spiders, crustaceans, centipedes
sponges
jelly fish, corals
sea stars, sea urchins, sea cucumbers
snails, clams, squids
Invertebrate Animals: Echinodermata
insects, spiders, crustaceans, centipedes
sponges
jelly fish, corals
sea stars, sea urchins, sea cucumbers
snails, clams, squids
Parasitic Nematodes: Placentonema gigantissimum
a nematode that affect about 100 million people in the tropical countries of the world
a giant nematode, parasitized the placenta of a sperm whale.
pine wilt nematode, has been involved in the devastation of tens of millions of pine trees in Japan.
the first multi-cellular nematode that exhibit a full sequence of DNA, led to some medical discoveries.
Parasitic Nematodes: Bursaphelenchus xylophilus
a nematode that affect about 100 million people in the tropical countries of the world
a giant nematode, parasitized the placenta of a sperm whale.
pine wilt nematode, has been involved in the devastation of tens of millions of pine trees in Japan.
the first multi-cellular nematode that exhibit a full sequence of DNA, led to some medical discoveries.
Parasitic Nematodes: Wuchereria bancrofti
a nematode that affect about 100 million people in the tropical countries of the world
a giant nematode, parasitized the placenta of a sperm whale.
pine wilt nematode, has been involved in the devastation of tens of millions of pine trees in Japan.
the first multi-cellular nematode that exhibit a full sequence of DNA, led to some medical discoveries.
Parasitic Nematodes: Caenorhabditis elegans
a. a nematode that affect about 100 million people in the tropical countries of the world
b. a giant nematode, parasitized the placenta of a sperm whale.
c. pine wilt nematode, has been involved in the devastation of tens of millions of pine trees in Japan.
d. the first multi-cellular nematode that exhibit a full sequence of DNA, led to some medical discoveries.
This refers to the distinct difference in forms and sex between the same species.
(a)
This pertains to the chemosensory organs of the nematodes situated on the lips.
(a)
These are known as worms that live in soil and feed on plants.
(a)
This is the usual shape of adult nematodes.
(a)
These controls are also known as “nematicides” that control nematodes yet found to be hazardous for the environment.
(a)
It acts as a small hypodermic needle that penetrate through the cell walls of the plants and consume the cell contents.
(a)
This is the place where the sperm from the male nematodes are stored.
(a)
It is the external surface of nematodes covered with a non-cellular structure.
(a)
This is the opening for excretory system.
(a)
It refers to a cuticularized structures that are inserted to the vulva of the female during mating.
(a)
A phylum of invertebrate animals with worm inclusions
cnidaria
nematoda
mollusca
porifers
A phylum of invertebrate animals with worm inclusions
cnidaria
arthropoda
mollusca
platyhelminthes
A phylum of invertebrate animals with worm inclusions
cnidaria
arthropoda
annelida
echinodermata
Benefits of invertebrate animals to environmental aspects.
Human food
parasitic activity
speedy reproduction
Benefits of invertebrate animals to environmental aspects.
surviving capacity
parasitic activity
speedy reproduction
Roles in food chain
What part is being indicated for number 44?
pharynx
mouth
intestine
ovary
What part is being indicated for number 45?
pharynx
mouth
intestine
ovary
What part is being indicated for number 46?
pharynx
mouth
intestine
ovary
What part is being indicated for number 47?
pharynx
mouth
intestine
ovary
What part is being indicated for number 48?
testis
vas deferens
uterus
ovary
What part is being indicated for number 49?
testis
vas deferens
uterus
ovary
What part is being indicated for number 50?
testis
vas deferens
uterus
ovary
