Question

Which of the following pairs of animals are similar to each other pertaining to the feature stated against them?
(a) Garden lizard and Crocodile - Three chambered heart
(b) Ascaris and Ancylostoma - Metameric segmentation
(c) Sea horse and Flying fish - Cold-blooded (poikilotherm)
(d) Pteropus ann ornithorhynchus - Vivipary

Answer 1

Animals that are not capable of controlling their body temperature and become sluggish in the cold weather are known as cold-blooded animals. Most of the time, the temperature of the body fluctuates when cold-blooded animals move in different surroundings with different temperatures.

Complete answer:
Cold-blooded animals are those animals that are not able to regulate their temperature of the body based on the surrounding temperature. These animals do not have a constant body temperature that's why their body temperature fluctuates when they move in different surroundings with different temperatures. Therefore, these animals are not able to survive at extreme temperatures. They are called the poikilothermic organism that includes Sea horses, Flying fish, and some reptiles.
Additional information
- The heart of the crocodile is different from other reptiles as they have four-chambered hearts and both atria and ventricles are completely separated in them.
-The garden lizard is an insectivore that constitutes a large tail having a three-chambered heart. The males are highly active and possessive during the breeding season.
-Ascaris are the parasites that can be passed from animal feces to humans. When they enter the body of a human it causes redness, itching, and pain. They can be passed from licking by a dog to humans.
-Hookworms are also known as the Ancylostoma. They feed the blood of the humans and are parasites. Their infection is generally found in various organs that include the skin, lungs, and intestine. They are transmitted by the dirt in an infected person.
- Pteropus are fruit foxes or flying bats, which are mammals and belong to the megabats suborder. They give birth to live offspring.
-Ornithorhynchus is the platypus. It is a mammal that lays eggs instead of giving birth to young ones, thus they are called oviparous.

So, the correct answer is ‘Sea horse and Flying fish - Cold-blooded (poikilotherm)’.

Note:
Three types of thermoregulation mechanisms are demonstrated by cold-blooded animals. These are Poikilothermy (internal temperature of the animal's body varies but their core temperature remains the same), Ectothermy ( utilization of external energy like the sun is used by the animals to control their body temperature), or Heterothermy (the temperature of the body changes drastically when the animals move from one environment to another).