What is the major difference between a kingdom and a domain? A) A kingdom can in

Question

What is the major difference between a kingdom and a domain? A) A kingdom can include several subgroups known as domains. B) All eukarya belong to one domain. C) All prokaryotes belong to one domain. D) The importance of fungi has led scientists to make them the whole of one domain. E) Only organisms that produce their own food belong to one of the domains. What is a characteristic of living things that sets them apart from the nonliving? A) Respond to a stimulus B) Grow and reproduce C) Adaptation to a way of life D) All of these are characteristics of living things. Choose the highest level of organization. A) tissues B) organs C) cells D) organ system What is meant by "maintaining homeostasis"? A) to keep a living thing neat and clean B) to keep population size within certain limits C) to maintain the internal environment for cells within certain limits D) to keep predators at bay, protecting the family unit Organisms within communities and ecosystems feed on one another to obtain energy and nutrients. What component does not cycle within an ecosystem? A) soil nutrients B) energy C) plant nutrients D) components of hard animal structures

Explanation / Answer

8 ) living things can respond to stimule,they can adapt the environment and grow in the new environment they start reproducing the new ones but in case of non living things they can't adapt to these new environment conditions .so all three characteristics are suitable for living organisms,and this process is called biogensis .9) According to structural organisation higest Leve of organ system is organ system ,because here they can perform many biological functions like excretions,digestion ,respiration, maintaining blood pressure ,and each organ system has individual process very important reproductive system different for males& females ,so organ system is considered as highest level of organiston .10) Homeostasis word meaning is to maintain the internal fluid levels constantly ,they are istonic with blood .there are two types of homestasis ,1) negative Homeostasis,postive Homeostasis.firstly is to balance the electrolytes of the body fluids .

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