Question

У речного рака симметрия тела:А) радиальная, или лучевая В) осевая Б) билатеральная, или двусторонняя Г) несимметричное строение.

Answer 1

У речного рака билатеральная, или двусторонняя симметирия. т.к. его можно поделит н 2 симметр. части.

Answer 2

Symmetry of the Body of a River Crayfish

The symmetry of the body of a river crayfish can be described as bilaterally symmetrical. This means that the body can be divided into two equal halves along a single plane, resulting in two mirror-image sides. This bilateral symmetry is a common characteristic in many animals, including river crayfish.

This information is supported by the search result snippets: - Source mentions the term "билатеральная" (bilaterally) in relation to symmetry. - Source also refers to "билатеральная" (bilaterally) symmetry.

Therefore, based on the provided search results, it can be concluded that the symmetry of the body of a river crayfish is bilaterally symmetrical.