Question

Сравните замкнутую и незамкнутость кровеносную систему Чем они отливаются

Answer 1

В замкнутой кров системе вся кровь движется по кровеносным сосудам и капиллярам. Характерна, например, для позвоночных.
А в незамкнутой кровь омывает все или некоторые внутренние органы. Она характерна для многих беспозвоночных.

Answer 2

Comparing Closed and Open Circulatory Systems

A closed circulatory system is a circulatory system in which the blood is contained within vessels. In contrast, an open circulatory system is a circulatory system in which the blood is not always contained within vessels.

In a closed circulatory system, blood flows through a network of vessels, including arteries, veins, and capillaries. The blood remains enclosed within these vessels as it circulates throughout the body. This type of circulatory system is found in vertebrates, including humans, as well as some invertebrates such as annelids and cephalopods.

On the other hand, in an open circulatory system, the blood is not always enclosed within vessels. Instead, it flows through interconnected sinuses and cavities. This type of circulatory system is found in many invertebrates, such as arthropods and mollusks.

Key Differences

Closed Circulatory System: - Blood is contained within vessels. - Found in vertebrates and some invertebrates. - Blood flows through arteries, veins, and capillaries. - Allows for more precise control of blood flow and distribution of nutrients and oxygen to tissues.

Open Circulatory System: - Blood is not always contained within vessels. - Found in many invertebrates, such as arthropods and mollusks. - Blood flows through interconnected sinuses and cavities. - Provides less precise control over the distribution of nutrients and oxygen to tissues.

In summary, the main difference between closed and open circulatory systems lies in how the blood is transported throughout the organism's body: whether it is contained within vessels (closed system) or not always enclosed within vessels (open system)