Сборник задач по подготовке учащихся к международным исследованиям timss и pisa
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ПИЗА ДАЙЫНДЫ0 ТАПСЫРМАЛАРЫ қазақша
| Task 2. Snail
Snail - one of the largest land snails in our country, and its shape is familiar to each of us: an asymmetrical body, wide flat "foot", two pairs of tentacles and a pair of eyes. Shell color varies from yellow-brown to brownish-white. Fig. 2 Question 1. What determines the color of the shell? A. from food intake The age B. C. the shape of the shell D. shell on the number of revolutions Answer: . Question 2. How to distinguish the age of snails? over the thickness of the shell edge otverstvija by muscular contractions on the shell color for the shell-shaped Answer: . Task 3. Cell Cage is a structural unit of any organism. At the same time she is an entire living system (Figure 3). Figure 3 Question 1. What is the structure of the cell is shown in Figure 3? Figure 4 endoplasmic reticulum plasma membrane Golgi complex vacuole Answer: . Question 2. What are the branch of biology that studies living cells and their organelles, their structure, function, cell division processes, aging and death. cytology photobiology physiology immunology Answer: . Task 4. Skin In Biology - outer covering of vertebrates is called a skin. The skin protects the body from a wide range of external factors, is involved in respiration, thermoregulation, metabolism and many other processes. Moreover, the skin presents a massive receptive field of various kinds of surface sensitivity. Figure 5 Question 1. The skin is the largest organ on the square. What is the percentage of the weight of the skin relative to body weight? A. 12-15% B. 10-25% C. 8-11% D. 25-30% Answer: . Question 2. Skin thickness is different on different parts of the body. What part of the body covered by the thinnest skin? A.Ladon B.Stopa C. Eyelids D. Stomach Answer: . Figure 6 Question 3. The skin is composed of layers of different embryonic origin. What is the outer layer of skin? Follicles Hypodermis Dermis Epidermis Answer: . Figure 7 Question 4: The skin - the body that is updated more frequently than any other. Hourly your skin loses about 600,000 horny scales. Their weight is 700 - 800 grams. And by the age of 70 lost about 60 kg of skin. How long does it take to change all the cells? Figure 8 22-25 days 30-40 days 52-77 days D. 100-120 days Answer: . жүктеу/скачать 3,11 Mb. Достарыңызбен бөлісу:
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