"Features and comparative
characteristics of flat
round and annelid worms"
Option I
Date ____________________
| Block A |
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| How many germ layers, or sheets, of cells are ultimately formed during the early development of annelids? a) 1 b) 2 c) 3 d) 4 |
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| Name the germinal layer of cells, the appearance of which is associated with the appearance and development of flat, round and annelid worms. |
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| Name the muscles that are present in flatworms and absent in annelids. a) annular b) longitudinal c) dorso-abdominal |
|
| Name the type of animal whose representatives do not have a body cavity. |
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| Name how many tufts of small elastic bristles are located in each segment of the earthworm. a) 1 b) 2 c) 3 d) 4 |
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| Name the part of the earthworm's body in which its testes and ovaries are located. a) front b) middle c) back |
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| a) bovine tapeworm b) roundworm c) pinworm |
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| Name the human organ(s) in which pinworms live a) stomach b) liver c) intestines d) skeletal muscles |
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| What kind of host is a human being for the bovine tapeworm? a) main b) intermediate |
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| Name the area of the body of the bovine tapeworm where new segments are formed. a) head b) neck c) middle segments d) terminal segments |
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Block B
1. Indicate the name of the type and class of worms
2. Using the numbers given in the list, indicate the characteristics characteristic of a particular group of worms (A and B):
A - flatworms
B - roundworms
1. Bilateral symmetry
2. The body consists of segments
3. The body has no segments
4. Has suction cups
5. There is a skin-muscle bag
6. The cavity is filled with liquid
7. Hermaphrodites
8. Dioecious
3. What happens if leeches stop producing hirudin? ? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
4 . Finish the diagram
| Digestive system of annelids | ||||||||||||||
Zoology test
"Features and comparative
characteristics of flat
round and annelid worms"
Option II
Student(s)_______________________________________________ Class _________
Date ____________________
| Block A Choose the correct answer |
|
| Name a physiological system that is absent in roundworms. a) excretory b) respiratory c) nervous d) sexual |
|
| The circulatory system of annelids. a) closed b) open |
|
| Name the germinal layer of cells from which muscles are formed in flat, round and annelid worms. a) ectoderm b) mesoderm c) endoderm |
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| Name the type to which the following animals belong: earthworm, nereid, sandworm: a) flatworms b) roundworms c) annelids |
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| Name the organ system that the bovine tapeworm does not have. a) excretory b) nervous c) digestive d) reproductive |
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| Name the type of symmetry characteristic of flatworms. a) radial (radial) b) bilateral c) central |
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| What can you say about the body cavity of flatworms? a) absent b) available |
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| What type of host is usually humans for pork tapeworm? a) main b) intermediate |
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| The bovine tapeworm is a hermaphrodite. Does another individual of the species need to reproduce? a) yes b) no |
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| Does roundworm have a circulatory system? a) yes b) no |
|
Block B
1. Indicate the name of the type and class of worms
Type ______________ Type ______________ Type ______________
Class_____________ Class_____________ Class____________
2. Using the numbers given in the list, indicate the characteristics characteristic of the worm species (A and B):
A - bovine tapeworm
B - human roundworm
1. The body is flattened in the dorso-abdominal direction
2. Body segmented and flat
3. the body is elongated and has a rounded cross-section
4. Lives in the human intestines
5. Intermediate host - cattle
6. There is no intermediate host
7. There are suction cups with hooks
8. Has a mouth and anus
3. For what purpose are leeches bought in pharmacies? _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
4. Finish the diagram
| The meaning of polychaetes in nature | ||||||
Answers
| I option | II option |
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| Block A Test tasks “External and internal structure of worms” |
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| Block B “Physiological characteristics of worms” |
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| 1 question |
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| Type Ringed Leech class | Type Flatworms Class Cilia |
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| Type Round Class Ascaris | Type Flatworms Class Tape |
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| Type Ringed Class Polychaetes | Type Annelids Class Polychaetes |
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| Question 2 |
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7TH GRADE
Option 1
1. What type are animals with an elongated cylindrical body pointed at both ends, not divided into segments?
A) Roundworms
B) Annelids
B) Flatworms
D) Coelenterates
2. Where does an adult bull tapeworm live:
A) in fresh water bodies
B) in the muscles of animals
B) in the human intestine
D) in the soil
3. The roundworm larva begins to develop in the egg after it enters
A) the body of a pond snail
B) muscles of a cow or sheep
B) an oxygen-rich environment
D) cattle liver
4. Overall is
A) “heart” in annelids
B) the stomach of a roundworm
B) secondary body cavity
D) primary body cavity
6. What signs have appeared in annelids compared to flatworms?
A) large clusters of nerve cells in the anterior part of the body
B) closed circulatory system
B) parenchyma between internal organs
D) skin-muscle sac
D) body cavity divided by partitions into segments
E) digestive, nervous, excretory systems of organs
What harm do liver fluke and bovine tapeworm cause to human health?
7TH GRADE
TEST “TYPES: FLAT WORMS, ROUNDWORMS, RINGWORMS.”
Option 2
Choose one correct answer from those given.
2. Habitat of liver fluke larvae -
A) the body of cattle
B) water, small pond snail, aquatic plants
B) human intestines
D) human liver
4. The spaces between organs are filled with loose connective tissue
A) flatworms
B) roundworms
B) annelids
D) coelenterates
Choose three correct answers from those given.
Give the answer to the question in expanded form (in writing):
7. Why are the white planaria and the bull tapeworm classified as the same type?
KEY TO QUESTIONS AND TASKS.
Option 1
1-a
2-in
3-in
4-in
5-g
6-abd
7- They feed on semi-digested human food and secrete harmful metabolic products.
Option-2
1-b
2-b
3-a
4-a
5-in
6-abe
7- They have a flattened body, bilateral symmetry, the space between the organs is filled with parenchyma.
Bull tapeworm. The source of infection is cattle, as well as a sick person, who plays a major role in the spread of bovine tapeworm eggs. The participation of flies in the transmission of the pathogen is possible. A person becomes infected by eating raw, half-raw, lightly salted and dried meat, raw minced meat containing tapeworm larvae (Finns).
Liver fluke. The definitive hosts are herbivorous mammals (cattle and small cattle, horses, pigs, rabbits, etc.), as well as humans. The intermediate host is the small pond snail. Infection of the main host occurs when it eats grass from water meadows (for animals) or unwashed greenery (for humans).
Ascaris. A person becomes infected with roundworms by eating dirty vegetables, fruits, and herbs. Roundworm eggs are carried by wind and flies and settle on vegetables and fruits. Children often become infected with roundworms by eating soil or using toys contaminated with soil. Ascaris eggs mature only in the ground, so human infection with roundworms occurs only through things and products contaminated with soil containing ascaris eggs. Transmission of roundworms from person to person is impossible.
When eating contaminated foods, roundworm eggs enter the stomach and intestines, where they quickly turn into larvae.
Option 1.
1) in the body of the main host; 2) in the body of an intermediate host; 3) in the ground-air environment; 4) soil and aquatic environment.
2. Radial symmetry of the bodydoes not have:
1) jellyfish – corner mouth; 2) white planaria; 3) freshwater hydra; 4) red coral.
1) equipped with cilia; 2) covered with scales; 3) consist of chitin; 4) are not dissolved by the digestive juices of the host.
4. What type of animals are those that do not have a body cavity, and the spaces between the organs are filled with loose connective tissue:
1) roundworms; 2) annelids; 3) arthropods; 4) flatworms.
5. A free-living species is:
1) planaria; 2) wide tape; 3) echinococcus; 4) cat fluke.
6. Roundwormsare not deleted from the intestines along with undigested food, because:
1) have great fertility; 2) can live in an oxygen-free environment; 3) capable
move in the direction opposite to the movement of food;
4) the integument of their body is not affected by digestive juice.
7. The digestive system of the human roundworm, in contrast to flatworms:
1) lacks intestines; 2) lacks an oral opening; 3) has an anus;
4) lacks an anus.
8. In the skin-muscle sac of the roundworm, the muscles are represented by:
1) only circular muscles; 2) only oblique muscles; 3) only longitudinal muscles;
4) all of the listed muscle types.
9. Digestion earthworms of plant residues contributes to:
1) mixing the soil; 2) penetration of air into the soil; 3) enrichment of soil with organic
substances; 4) penetration of moisture into the soil.
10. What type of animals have the highest level of organization:
1) coelenterates; 2) flatworms; 3) annelids; 4) roundworms.
Part B
1. Establish a correspondence between groups of animals and their characteristic features:
A) Flatworms
B) Roundworms
1) there is a body cavity
2) no body cavity
3) the intestines end blindly
4) the intestine ends with the anus
5) characterized by a life cycle with one host
6) characterized by a life cycle with a change of hosts
Test Grade 7 Topic “Worms: Flat, Round, Ringed”
Option 2.
Part A (choice one correct answer)
Which animal is the intermediate host of the liver fluke:
1) dog; 2) person; 3) cow; 4) small pond snail.
Human infection with bovine tapeworm can occur when:
3. The interaction between a person and a bull tapeworm is called:
4. The body wall of flatworms is represented by:
1) only by skin; 2) external chitinous skeleton; 3) sink; 4) skin-muscle bag.
5. The internal organs of the white planaria are placed:
1) in the primary body cavity; 2) in the secondary body cavity; 3) in loose connective tissue; 4) in the intestinal cavity.
6. Multicellular, bilaterally symmetrical animals of an elongated shape, not divided into segments, having a body cavity, are classified as:
1) flatworms; 2) roundworms; 3) coelenterates; 4) annelids.
7. Infection with human roundworm occurs when:
1) eating raw meat; 2) eating raw fish; 3) failure to comply with personal hygiene standards;
4) infection of wounds and cuts.
8. During the transition from flatworms to roundworms, the following aromorphoses (complications) occurred:
1) a body cavity appeared; 2) a circulatory system appeared; 3) respiratory organs appeared;
4) specialized organs of movement appeared.
9. Unlike flatworms and roundworms, annelids have:
1) nervous system; 2) circulatory system; 3) excretory system; 4) digestive system.
10. The excretory system of annelids is represented by:
1) excretory glands; 2) paired kidneys in each body segment; 3) paired
excretory funnels in each body segment; 4) in each segment of the body by skin glands.
Part B Choose three correct statements out of six.
1. The signs of annelids include:
1) peripharyngeal nerve ring and nerve trunks with branches extending from it
2) bristles on body segments
3) peripharyngeal nerve ring and ventral nerve cord
4) poor development or absence of sensory organs
5) the presence of a closed circulatory system
6) nutrition of tissues of human body organs
Test Grade 7 Topic “Worms: Flat, Round, Ringed”
Option 3.
Part A (choice one correct answer)
Planarian respiration occurs:
1) diffusely through the integument of the body; 2) with the help of external outgrowths - gills; 3) using internal gills; 4) using pulmonary sacs.
2. The main host of the bovine tapeworm is:
1) bull; 2) person; 3) sheep; 4) horse.
3. The intermediate host of the liver fluke is:
1) bull; 2) person; 3) fish; 4) pond snail mollusk.
4. Who are classified as eyelash worms:
1) bovine tapeworm; 2) pork tapeworm; 3) echinococcus; 4) milky white planaria.
1) eyes appeared; 2) hermaphroditism arose; 3) the anal opening was reduced; 4) organs of attachment to the host body emerged.
6. In roundworms, unlike flatworms, the body cavity is filled with:
1) blood; 2) air; 3) liquid; 4) parenchyma (connective tissue).
1) stomach; 2) small intestine; 3) liver; 4) large intestine.
8. Which groups of animals do not use oxygen in the process of breathing:
1) earthworms and other soil inhabitants; 2) larvae of insects living under
sea depths.
9. The nervous system of an earthworm is represented by:
1) nerve cells scattered throughout the body; 2) peripharyngeal nerve
ring and ventral nerve cord; 3) cephalic nerve ganglia and outgoing
from them with trunks; 4) peripharyngeal nerve ring, dorsal and ventral
trunks.
10. Earthworms,making tunnels in the soil :
1) promote the formation of organic substances in plants; 2) improve conditions
root breathing; 3) affect the speed of movement in mineral plants
substances; 4) affect the speed of movement of organic substances in plants.
Part B
1. Establish a correspondence between the characteristic and the type of living organisms:
A) Coelenterates
B) Annelids
1) two-layer animals
2) the presence of a body cavity filled with fluid
3) reticular nervous system (diffuse type)
4) the body is segmented
5) radial symmetry
6) presence of a circulatory system
2. Name the worm. Specify the type and class to which it belongs.
Test Grade 7 Topic “Worms: Flat, Round, Ringed”
Option 4.
Part A (choice one correct answer)
Nervous system of flatworms:
1) diffuse type; 2) ladder type; 3) tubular type; 4) absent.
2. Finna (larva) of the bovine tapeworm usually develops:
1) in the external environment; 2) in the muscles and internal organs of a person; 3) in the muscles and internal organs of the cow; 4) in the muscles and internal organs of the dog.
3. Inhabits the small intestine, does not have a developed digestive system:
1) white planaria; 2) bovine tapeworm; 3) liver fluke; 4) cat fluke.
4. In the development cycle of flatworms, a change of hosts is observed. Where does the development cycle take place? liver fluke:
1) in the organisms of the small pond snail and cattle; 2) in the bodies of cattle and humans; 3) in the bodies of farm animals and dogs; 4) all answers are wrong.
5. Which of the following animals does not have an anus:
1) roundworm; 2) pinworm; 3) white planaria; 4) earthworm.
6. Roundworms lack:
1) body cavity; 2) excretory system; 3) nervous system; 4) circulatory system.
7. Bodydivided on the joints of:
1) coelenterates; 2) sponges; 3) roundworms; 4) annelids.
8. Which of the following animals has a round body:
1) human roundworm; 2) liver fluke; 3) bovine tapeworm; 4) Siberian fluke.
9. Annelids have muscles:
1) circular and longitudinal; 2) only circular; 3) only longitudinal; 4) transverse, longitudinal and
ring.
10. Annelidsdiffer from round:
1) bilateral symmetry; 2) through intestine; 3) the presence of a body cavity; 4) availability
circulatory system.
Part B
A) roundworm
B) bovine tapeworm
1) do not eat raw, poorly cooked or fried meat
2) wash your hands before and after eating
3) do not eat unwashed raw fruits and vegetables
4) protect food from flies
2 . Name the worm. Specify the type and class to which it belongs
Answers: Topic: “Worms: Flat, Round, Ringed”
Option 1
Option: 2
Option: 3
Option: 4
Last name, first name:
Last name, first name:
Last name, first name:
Last name, first name:
Last name, first name:
Last name, first name:
