The difference between Poikilothermic Animals and Homeothermic Animals is Poikilothermic Animals body temperature varies with environmental temperature whereas Homeothermic Animals body temperature remains constant.
Differences in growth between plants and animals are :- Throughout their life plants continue to grow whereas animals grow during a fixed period in their life cycle.
Reproduction is a function through which a living organism is able to produce more of its own kind. It is one of the fundamental attributes of living organisms. In this process new individuals of a species are produced and perpetuated.
For sexual reproduction, both male and female gametes have to be united. Sexual reproduction in animals can be observed in members of all the phyla. In protozoans, we can take an examp0le of an endoparasite, Monocystis.
On the basis of food habits, animals can be divided into the following types: Herbivores, Carnivores, Omnivores and Carrion-eaters animals. The term herbivores has been derived from the Latin words herba (herb) and vorare (to eat). The animals, which feed on plant only, are known as herbivores.
The removal of toxic, waste metabolic products from the body is known as excretion. All plants and animals produce harmful substances due to a number of metabolic activities occurring in their bodies. Carbon dioxide produced during respiration is removed by lungs.
Classification means arranging things into groups. There are many living things in surroundings. To make learning simple, we must classify them first. Scientists use similarities and differences to classify living things into groups.
The first member of the food chain is a green plant and is called the producer. The next link is the primary consumer followed by the secondary and tertiary consumer. The decomposers are at the end of the chain. Animals need plants for shelter and plants need animals for manure and to keep the balance of carbon dioxide in the air.
Man, animals and plants depend on each other for various purposes such as :- 1. Animals and plants need each other for food: 2. Animals need plants for shelter: 3. Plants need animals for keeping the balance of carbon dioxide in the air 4. Plants need animals for nourishment and etc.
Animals are a very important part of man’s surroundings. We get food, material and many services from animals. We drink milk that we get from cows, buffaloes, goats and even camels. Milk is a very important food for the growth of children. We get cheese, curd, butter and ghee from milk.