To answer the question "Heart is four chambered in," we will analyze the heart structure of different classes of animals.
### Step-by-Step Solution:
1. **Identify the Classes of Animals**: We need to consider the classes of animals mentioned: Amphibia, Pisces, Reptiles, and Mammals.
2. **Heart Structure in Pisces (Fish)**: Fish have a two-chambered heart, consisting of one atrium and one ventricle. Therefore, they do not have a four-chambered heart.
3. **Heart Structure in Amphibia (Amphibians)**: Amphibians have a three-chambered heart, which includes two atria and one ventricle. Thus, they also do not possess a four-chambered heart.
4. **Heart Structure in Reptiles**: Reptiles typically have a three-chambered heart, which includes two atria and one ventricle. However, there is a partial septum that divides the ventricle, making it somewhat more complex but still not fully four-chambered.
5. **Heart Structure in Mammals**: Mammals have a completely four-chambered heart, consisting of two atria and two ventricles. This structure allows for efficient separation of oxygenated and deoxygenated blood.
6. **Conclusion**: Based on the analysis, the correct answer to the question "Heart is four chambered in" is Mammals.
### Final Answer:
The heart is four-chambered in Mammals.
Topper's Solved these Questions
EVIDENCES OF EVOLUTION
DINESH PUBLICATION|Exercise CHECK YOUR GRASP|3 Videos
ENVIRONMENTAL ISSUES
DINESH PUBLICATION|Exercise Model test paper-5|100 Videos
EXCRETORY PRODUCTS AND THEIR ELIMINATION
DINESH PUBLICATION|Exercise Check your graps|10 Videos
Similar Questions
Explore conceptually related problems
Which one of the following is incorrect for Aves? A Heart is four-chambered and animals are oviparous B The presence of air cavities in bones and the presence of feathers on the body С Digestive tract has additional chambers and animals are homeothermal D The forelimbs are not modified into wings
In birds I. three ovaries ar present. II. Heart is four-chambered. III. Mesonephiric kidneys are present. IV. Bipedal movement is present. Choose the corect option.
Heart is two chambered in
Common characteristics found in between aves and mammals are a. Respiration in by lungs b. Heart if four-chambered c. Homoiothermy d. Larva is not found e. Dioecious and internal fertilisation f. Jaws are provided with teeth.
Read the following characters : They have two pairs of limbs Homoiothermous and heart is four-chambered Fertilization is internal Different types of teeth are present in jaw Above characters belong to -
Heart can be three or four chambered in the vertebrate group
Three-chambered heart of Frog is not as efficent as four chambered human heart because
Read the following statements and find out the incorrect statements. a. Heart is situated in the thoracic cavity, is between the two lungs, slightly tilted to the right. b. Heart has the size of a clenched fist. (c ) Heart is protected by double walled membranous bag, pericardium, enclosed the pericardial fluid. d. Human heart has four chambers, two relatively larger upper chambers called atria and two smaller lower chambers called ventricles. e. A thick muscular wall called the inter-atrial septum separtes the right and the left atria, whereas a thinwalled, the inter-ventricular septum, separtes the left and right ventricles.
Three chambered heart of frog is not as efficient as fourchambered human heart because
DINESH PUBLICATION-EVIDENCES OF EVOLUTION-CHECK YOUR GRASP
