Question

1)How many heart chambered
present in following animals
1.)Birds
2)Frog
3)crocodile
4)Cow
5)cockroach​

Answer 1

1. Birds, like mammals, have a 4-chambered heart (2 atria & 2 ventricles), with complete separation of oxygenated and de-oxygenated blood.
2. The frog heart has 3 chambers: two atria and a single ventricle. The atrium receives deoxygenated blood from the blood vessels (veins) that drain the various organs of the body. The left atrium receives oxygenated blood from the lungs and skin (which also serves as a gas exchange organ in most amphibians).
3. has a four-chambered heart and two ventricles, an unusual trait among extant reptiles, and both a left and right aorta which are connected by a hole called the Foramen of Panizza. Like birds and mammals, crocodilians have heart valves that direct blood flow in a single direction through the heart chambers.
4. It is made of four chambers through which blood flows: two upper chambers (where blood enters the heart) and two lower chambers (where blood exits the heart). Here, windows have been cut into three of these chambers to show what's inside.
5. Like other insects, the cockroach has an open circulatory system, meaning its blood doesn't fill blood vessels. Instead, the blood flows through a single structure with 12 to 13 chambers, said Don Moore III, a senior scientist at the Smithsonian's National Zoo.

Answer 2

Answer:

1.Birds, like mammals, have a 4-chambered heart (2 atria & 2 ventricles), with complete separation of oxygenated and de-oxygenated blood.

2.The frog heart has 3 chambers: two atria and a single ventricle. The atrium receives deoxygenated blood from the blood vessels (veins) that drain the various organs of the body. The left atrium receives oxygenated blood from the lungs and skin (which also serves as a gas exchange organ in most amphibians).

3.has a four-chambered heart and two ventricles, an unusual trait among extant reptiles, and both a left and right aorta which are connected by a hole called the Foramen of Panizza. Like birds and mammals, crocodilians have heart valves that direct blood flow in a single direction through the heart chambers.

4.It is made of four chambers through which blood flows: two upper chambers (where blood enters the heart) and two lower chambers (where blood exits the heart). Here, windows have been cut into three of these chambers to show what's inside.

5.Like other insects, the cockroach has an open circulatory system, meaning its blood doesn't fill blood vessels. Instead, the blood flows through a single structure with 12 to 13 chambers, said Don Moore III, a senior scientist at the Smithsonian's National Zoo

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