In which type of symbiosis does one benefit and one is harmed?
In which type of symbiosis does one benefit and one is harmed?
Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other is not affected. Parasitism is a symbiotic relationship in which the parasitic species benefits while the host species is harmed.
In which symbiotic relationship do both organisms benefit?
Mutualism, a relationship in which both species benefit, is common in nature. In microbiology, there are many examples of mutualistic bacteria in the gut that aid digestion in both humans and animals. Commensalism is a relationship between species in which one benefits and the other is unaffected.
Why do we need food answers Class 7?
Answer: All organisms need to take food to get energy for the growth, development, locomotion and maintenance of their bodies. Question 2: Distinguish between a parasite and a saprotroph. Organisms derive nutrition from the body of other living organisms (host) are parasites.
Why do we need food answers Class 6?
Why do we need Food We need food because food gives us energy. Food we eat gives our body essential nutrients to help us grow and heal when we are injured or we are ill. Thus food keeps us healthey and provide us essential nutrients to fight diseases.
Why do we need food for class first?
Food gives us energy. There are many kinds of food like fruits, vegetables, grains, eggs, milk and milk products, meat and fish. We need to eat a variety of foods to get all kinds of nutrients. Milk and milk products keep our teeth and bones healthy.
What type of food should we eat?
The five food groups are:
- vegetables and legumes or beans.
- fruit.
- lean meats and poultry, fish, eggs, tofu, nuts and seeds, legumes or beans.
- grain (cereal) foods, mostly wholegrain or high cereal fibre varieties.
- milk, yoghurt, cheese or alternatives, mostly reduced fat.
Where do we get our food from?
Most of our food comes from plants. Plants give us many things. Plants give us vegetables, fruits, cereals and pulses. Plants also give us coffee, tea, sugar, oil and spices.
Why do we need a house Class 1?
House is a place in which we live. All living being such as animals birds humans, need a place to live. It keeps us safe from bad weather such as rain, sunlight, storm and other natural disasters. That’s why we need a house.
Why having a house is important?
“We have a need for a place that is called home,” he adds. Home provides security, control, belonging, identity, and privacy, among other things. “But most of all, it’s a place that provides us with a centering—a place from which we leave each morning and to which we return each evening.”
Why do we live in a house Class 2?
Our house protects us from heat, cold, rain, thieves, wild animals, dirt, and dust. They are found in villages, towns, and big cities. They known as temporary houses.