Question

1. Роль сердца у дождевого червя выполняют1) спинные сосуды2) кольцевые сосуды3) брюшные сосуды4) окологлоточные сосуды2. Функцию опоры при движении дождевого червя в почве выполняют1) жгутики2) реснички3) щетинки4) выросты цитоплазмы3. Общим систематическим признаком для типа членистоногих служит1) строение ротового аппарата2) непрямое развитие3) трахейное или легочное дыхание4) сегментированность тела и объединение сегментов4. Общим систематическим признаком для типа членистоногих служит1) строение ротового аппарата2) непрямое развитие3) трахейное или легочное дыхание4) сегментированность тела и объединение сегментов5. К какому типу относят двухслойных беспозвоночных животных с лучевой симметрией тела, защищающихся от врагов и добывающих пищу с помощью стрекательных клеток?1) Моллюски2) Членистоногие3) Круглые черви4) Кишечнополостные

Answer 1

1 - 1
2 - 3
3 - 4 (одно и тоже в вопросе 4)
4 - 4 (одно и тоже вопрос 3)
5. 4

Answer 2

Role of the Heart in Earthworms:

The role of the heart in earthworms is to pump blood throughout their bodies, supplying oxygen and nutrients to their cells. Earthworms have a closed circulatory system, meaning that their blood is contained within vessels. The heart, which is a muscular tube located near the anterior end of the worm, pumps the blood through a series of vessels called aortic arches. These aortic arches distribute the blood to various parts of the earthworm's body [[1]].

Function of Support during Movement in Earthworms:

The function of support during movement in earthworms is performed by bristles or setae. Earthworms have numerous bristles embedded in their body wall, which help them grip the soil and move forward. The bristles anchor the worm's body in the soil, preventing it from slipping backward as it contracts and extends its muscles. This allows the earthworm to move through the soil efficiently [[2]].

Common Systematic Characteristic for the Phylum Arthropoda:

The common systematic characteristic for the phylum Arthropoda is the segmentation of the body and the fusion of segments. Arthropods, including insects, spiders, and crustaceans, have bodies that are divided into distinct segments. These segments are often specialized for different functions, such as locomotion, feeding, and reproduction. The segments are typically fused together to form a rigid exoskeleton, which provides support and protection for the arthropod [[3]].

Two-Layered Invertebrates with Radial Symmetry, Defensive Mechanisms, and Prey Capture with Stinging Cells:

The two-layered invertebrates with radial symmetry, defensive mechanisms, and prey capture using stinging cells are cnidarians. Cnidarians include jellyfish, sea anemones, and corals. They have a simple body plan with two layers of cells: an outer epidermis and an inner gastrodermis. Cnidarians possess specialized cells called cnidocytes, which contain stinging structures called nematocysts. These nematocysts are used for defense and capturing prey [[4]].

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