A5. Intermediate host in the development cycle of the porcine tapeworm

FLAT WORMS.

Option 1.

Part 1

When completing the tasks of this part in the answer sheet No. 1, under the number of the task you are performing (A1-A6), put the “×” sign in the box, the number of which corresponds to the number of the answer you have chosen.

A1. Animals with bilateral symmetry

1) lead a sedentary lifestyle 3) lead an active lifestyle

2) as a rule, inactive 4) mainly inhabitants of reservoirs

A2. The digestive system of ciliary flatworms consists of

1) mouth, pharynx, blindly closed intestine 3) mouth, pharynx, stomach, intestines, anus

2) mouth, pharynx, intestines, anus 4) mouth, pharynx, stomach, intestines

A3. They inhabit the small intestine, feed on the digested food of the host, do not have their own

Digestive system

1) white planaria 3) bull tapeworm

2) hydra 4) liver fluke

A4. Finna is

1) ciliated larva of hydroid polyps 3) stage of development of tapeworms

2) stage of development of scyphoid jellyfish 4) stage of development of fluke worms

A5. Intermediate host in the life cycle of the liver fluke

1) man 3) cow

2) pig 4) shellfish

A6. Find a picture of a flatworm

one) 2) 3) 4)

Part 2

When completing tasks B1 – B2 in the answer sheet No. 1, write down in alphabetical order the letters indicating three correct answers , starting from the first cell without gaps and punctuation marks.

IN 1. What signs are characteristic of the habitat of parasitic worms that live in the body

Human

A) an abundance of easily digestible food D) limited food resources

B) temperature constancy E) sharp fluctuations in water-salt metabolism

C) the absence of natural enemies E) a high percentage of oxygen

IN 2. The Flukes class includes animals with the following features:

A) leaf-shaped body D) free-living and parasitic animals

B) dioecious E) the length of adults is up to 10-30m

C) exclusively parasites E) branched or shortened intestines

When performing task B-3, establish the correct sequence of biological processes, phenomena, and practical actions. Write down the letters of the selected answers in form No. 1 without spaces or other symbols.

IN 3. Set the sequence of systematic units, starting with the largest

A) Milky white planaria D) Three-branched

B) Flatworms D) Ciliary

C) Planaria E) Animals

FLAT WORMS.

Option 2.

Part 1

When completing the tasks of this part in the answer sheet No. 1, under the number of the task you are performing (A1-A6), put the “×” sign in the box, the number of which corresponds to the number of the answer you have chosen.

A1. The body wall of flatworms is represented by

1) skin 3) shell

2) outer chitinous cover 4) skin-muscular sac

A2. Tapeworms, unlike flukes, lack

1) digestive system 3) intermediate host

2) system of organs of attachment 4) larvae

A3. . They inhabit the small intestine, feed on the digested food of the host, do not have their own

Digestive system

1) brown planaria 3) pork tapeworm

2) aurelia 4) liver fluke

A4. Human infection with bovine tapeworm Finns can occur when using

1) water from a stagnant reservoir 3) poorly washed dishes of a sick person

2) eating unwashed vegetables 4) poorly fried meat

A5. Intermediate host in the life cycle of the porcine tapeworm

1) man 3) cow

2) pig 4) shellfish

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