To provide an accurate answer for page 87 of your 7th-grade biology workbook, it is important to identify which specific author's workbook you are using. In the Russian curriculum, there are several popular versions, and the content on page 87 differs significantly between them.
, specifically focusing on their internal structure or diversity. rabochaia tetrad po biologii 7 klass stranitsa 87 zadanie
Could you provide the or the topic heading at the top of page 87? This will allow me to give you the exact text and diagram labels required. To provide an accurate answer for page 87
Birds have a four-chambered heart (четырёхкамерное сердце) and separate blood flows (arterial and venous). Could you provide the or the topic heading
If you are using the blue "Line of Life" (Линия жизни) series, page 87 usually covers or
Comparing the skeletons or organ systems of different vertebrates.