2.Answer the following questions in 2-3 sentences : (Any 3) 6M 1) What is response to stimuli ? 2) Explain tropical rainforest ? 3) Describe interactions between biotic components of an ecosystem. 4) Explain cold blooded animals with examples. 5) Explain the formation of Organism from Cell.
Answers
Answer:
1.As humans, we detect and respond to stimulus in order to survive. For example, if you walk outside on a very sunny day, your pupils will constrict to protect your eye from taking in too much light and being damaged. Your body reacts to the stimulus (the light) to protect you.
2.Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as lowland equatorial evergreen rainforest.
3.Abiotic factors can be extremely broad. Sunlight, air, soil, rock, minerals, water, etc. are all biotic factors. Sunlight provides energy that plants utilize to grow, which ultimately holds up the whole biotic community of an ecosystem. Air also interacts with plants, helping them grow by providing a source of carbon (CO2) and other nutrients.
4.Cold blooded animals are those animals that cannot regulate their body temperature and their temperature keeps changing according to their environment. Some of the examples of cold blooded animals include fish, reptiles and insects.