Tag: caskets of life
Questions Related to caskets of life
Some organs are used in more than one system.
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True
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False
There are certain organs which are parts of more than one system and perform functions for both of them. For example, the pancreas produces hormones where they have an endocrine role ad also secrete digestive juices being a part of digestive system. Similarly, male urethra acts as a duct for both male sperms as well as urine, thereby acting as a part of both reproductive system and excretory system. Bone marrow is a part of skeletal; as well as the circulatory system as it also produces RBC's and WBC'S.
Which of the following cells can be seen with a naked eye?
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Egg cell of a hen
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Neurons of a giant squid
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Cells of the elephant's brain
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No single can be seen with a naked eye
In all mammals, the ovum is fertilized inside the female body. typically visible to the naked eye without the aid of a microscope.
Which is the correct order for levels of organization in humans
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Cell $\rightarrow$ Tissue$\rightarrow$Organ$\rightarrow$Organ system$\rightarrow$Organism
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Cell$\rightarrow$Organ$\rightarrow$Organ system$\rightarrow$Organism
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Cell$\rightarrow$Tissue$\rightarrow$Organ$\rightarrow$Organism
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Cell$\rightarrow$Tissue$\rightarrow$Organism
Cells are grouped into tissues, tissues are grouped into organs, different organs are grouped into organ systems and many organ systems come together to form complex organisms like human beings.
First major 'multicellular' life is called:
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Cambrian Period
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Achaea
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Silurian
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Achaia
Cells are autonomous because
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They synthesise components of living protoplasm from non living materials.
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They are able to grow and divided.
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Each cell has its own life span.
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All of the above.
Cells are autonomous which means they are self contained. They are able to carry out their own activities independently for their survival. They are able to synthesis protoplasmic components of a cell from non living matter such as simple organic compounds. They are able to divide into daughter cells as they are capable of producing energy, exchange of gases and replication of genetic material required for division. Every such cell has a limited life span as it grows, divide and then later die but the other cells surrounding that cell may be in a different state of growth. Hence, option D is correct.
What happens during growth of a cell?
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K. I decreases
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K. l. increases
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K. I. fluctuates
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K. I. remains constant