They lack a urinary bladder (to reduce weight for flight). 2. Workbook by V.V. Latyushin and V.A. Shapkin
Birds have a four-chambered heart (четырёхкамерное сердце) and separate blood flows (arterial and venous).
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.
Focus on homologous organs (гомологичные органы)—parts that have the same origin but perform different functions (e.g., a bird's wing and a whale's flipper). 3. Workbook by I.N. Ponomareva (Kornilova, Kuchmenko)
Lab work or filling out a table on "Internal Structure of Birds." Key Answers:
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.
They lack a urinary bladder (to reduce weight for flight). 2. Workbook by V.V. Latyushin and V.A. Shapkin
Birds have a four-chambered heart (четырёхкамерное сердце) and separate blood flows (arterial and venous). rabochaia tetrad po biologii 7 klass stranitsa 87 zadanie
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. They lack a urinary bladder (to reduce weight for flight)
Focus on homologous organs (гомологичные органы)—parts that have the same origin but perform different functions (e.g., a bird's wing and a whale's flipper). 3. Workbook by I.N. Ponomareva (Kornilova, Kuchmenko) Latyushin and V
Lab work or filling out a table on "Internal Structure of Birds." Key Answers:
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.