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Q. Oxygen comes from the environment and carbon dioxide in the end returns to the environment. How do small animals solve the problem of taking away and bringing these molecules from/to their cells? Why isn't that solution possible for larger animals?
Small animals whose tissues make direct contact or are extremely close to the environment, like poriferans and cnidarians, making gas exchange by diffusion.
Larger animals with cells without direct contact with the environment or far from it need special gas transportation systems in these animals the respiratory and the circulatory systems play this role.
What are the major respective constituents of cell walls in bacteria, protists, fungi and plants? Ans) In bacteria cell wall is made of peptidoglycans; between protists algae ha
Q. Limitations in the Diagnostic use of Stress Echocardiography? Although the presence of coronary artery disease is readily recognised in the setting of multivessel disease, a
Another type of soil for bacteria gardens Boil some rice or potatoes in a dish unless well cooked. Drain and save the water. Use the bouillon cube to the gelatin. Use th
Explain about the Anorexia Nervosa? Anorexia nervosa, as you have read above, is a psychological eating disorder characterized by somatic delusions that one is too fat despite
Inter-relationships of Classification The aim of classification is to put together organisms on the basis of their similarities. But the question is what type of similarities?
F o o t - a n d - m o u t h disease Foot-and-mouth disease (FMD) is an extremely contagious viral disease of cloven footed animals most notably cattle, pig and she
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What are the main cells of which poriferans are made? Sponges have their outer wall covered by flat cells known as pinacocytes and having pores well-delimited by special cells
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What is the best microscope to get a detailed view of the parts inside of a preserved plant cell
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