Class 10 Biology Notes Our Environment
Chapter Life Processes : All Important Comparisons and Differences between in Biology class 10
Chapter Control and Coordination: All Important Comparisons and Differences between in Biology class 10
Chapter How do Organism Reproduce: All Important Comparisons and Differences between in Biology class 10
Chapter Heredity and Evolution: All Important Comparisons and Differences between in Biology class 10
Chapter Our Environment: All Important Comparisons and Differences between in Biology class 10
Chapter Management and Natural Resources: All Important Comparisons and Differences between in Biology class 10
What are the Differences between Biodegradable Wastes and Nonbiodegradable Wastes?
| Biodegradable Wastes | Nonbiodegradable Wastes |
| Origin. They are biological in origin. | They are commonly man-made. |
| Degradability. The wastes are degraded by microorganisms. | They are not degraded by microorganisms. |
| Accumulation. They do not accumulate in nature. | They pile up and accumulate in nature. |
| Biomagnification. The biodegradable wastes do not show biomagnification. | The soluble nondegradable wastes enter food chains and undergo biomagnification. |
| Resource. The wastes can be converted into resource. Examples. Garbage, livestock wastes, sewage. | Some wastes can be recycled. Examples. Plastic, polythene, glass, nickel, cadmium, several pesticides. |
What are the Differences between Herbivores and Carnivores?
| Herbivores | Carnivores |
| Food. They are animals which feed on plants. | Carnivores are animals which feed on other animals. |
| Canines. The animals do not have well developed canines. | Canines are well developed to tear flesh of the prey. |
| Cellulose. Herbivores harbour microorganisms which degrade cellulose for them. | Carnivores do not degrade cellulose. |
| Ecological Status. Herbivores are primary consumers or second trophic level organisms. Examples. Deer, Goat, Cow, Mouse. | Carnivores are higher level consumers. They belong to third or still higher trophic level. Examples. Frog, Fox, Snake (feeding on mouse). |
What are the Differences between Carnivore and Omnivore?
| Carnivore | Omnivore |
| Food. It feeds on other animals. | It eats both plant and animal food. |
| Teeth. Canine teeth are well developed. Incisors are less developed. | Both canine and incisor teeth are well developed. |
| Claws. Claws are well developed. | Claws are less developed. |
| Trophic Level. It lies at a fixed trophic level. | It operates at two or more trophic levels. |
| Population. Population of a carnivore depends upon population of its prey. Examples. Peacock, Lion. | Population of an omnivore is less dependent upon population of its preys. Examples. Cockroach, Humans, Domesticated Dog. |
What are the Differences between Producers and Consumers?
| Producers | Consumers |
| Manufacture of Food. Producers manufacture their own food through the process of photosynthesis. | They cannot manufacture their own food. Photosynthesis is absent. |
| Chlorophyll. They possess chlorophyll. | Chlorophyll is absent. |
| Energy. Producers trap solar energy and change the same into chemical energy. | They cannot trap solar energy. Chemical energy is obtained from outside. |
| Nutrients. They obtain inorganic nutrients from outside. | They obtain organic nutrients from outside |
| Trophic Level. They constitute the first trophic level. | Consumers belong to second and higher trophic levels. |
What are the Differences between Food Chain and Food Web?
| Food Chain | Food Web |
| Units. It consists of a single unit of food relations. | It is a complex formed by several units of food relations |
| Sequence. It is a straight sequence of organisms. | It is a network of many linkages among the connected food chains. |
| Populations. It has a maximum of 4-6 populations of different species. | A food web consists of numerous populations of different species. |
| Food. Only one type of organism is used as food by a particular type of organism. | An organism can use two to several types of organisms as food. |
| Disturbance. A disturbance in food chain is difficult to overcome. | A disturbance is overcome after some time. |
| Endangered Species. It does not help in restoring population of endangered species. Rather it may decline further. | A food web helps in increasing population of endangered species. |
What are the Differences between Energy Flow and Circulation of Matter?
| Energy Flow | Circulation of Matter |
| Addition. Energy is being continuously passed from sun to the ecosystem. | No material is added from outside. |
| Movement. Energy flow is unidirectional. There is no circulation. | Materials circulate repeatedly between biotic and abiotic components. |
| Loss. Energy is dissipated at every level of its transfer and transformation. | There is no loss of matter. |
| Pool. An energy pool does not exist on earth. | Nutrient pool occurs in the abiotic environment. |