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What are cnidocytes? What is the name of the capsule inside the cnidocyte? What are the biological functions of this structure?
Cnidocytes are specialized cells present in coelenterates. They are found in the epidermis and have toxic substances that can hurt, paralyze or even kill other animals.
Every cnidocyte has an internal capsule know as nematocyst where the actual urticating substance is stored. When a cnidocyte is excited it causes the nematocyst to expose a filament having the toxic chemical.
Cnidocytes and their nematocysts have the biological functions of defending the individual from external aggression and of helping to capture their prey.
What is atom? Atoms are the smallest component of matter that determine its unique chemical and physical properties. They are composed of negatively charged electrons, positive
TEMPERATURE Temperature is a major physical environmental factor which profoundly influences the vital activities of living organisms like, metabolism, growth and reproduction.
what are the main coponents of human skeleton?
Which of the following serves as an actuating signal, or as part of an actuating signal, in a positive feedback system? A. Blood plasma levels of PTH (Parathryroid Hormone).
Which two gases are exchanged when living organisms breathe? Oxygen and carbon dioxide are the gases exchanged when living organisms breathe.
how does temperature affect the rate of cellular respiration? please explain with great detail!
Precautions for Preparation of Selective and Differential Medium 1. Dissolve ingredients one by one. 2. Check and set the medium to appropriate pH. 3. Autoclave the mediu
What are the possible effects on the fetus if, during pregnancy, the mother (a) smokes, (b) catches rubella? a) Smoking during pregnancy can lead to an underwe
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Q. What do you know about Cardiothoracic ratio? The cardiothoracic ratio (CTR) shown in figure is the transverse cardiac diameter (the horizontal distance between the most righ
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