Describe the way of life of sponges
Describe the way of life of sponges?
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Sponges live entirely in an aquatic environment and they are joined by their base to a substrate (that is, fixation ground). Sponges are filtering animals; they nourish themselves from nutrients which enter their atrium brought in by water.
Write down the major factors which affect the growth of population.
What are the pancreatic tissues included correspondingly in the exocrine and endocrine secretions? What are their respective enzymes and hormones?
I. Distortion of message. II. Delays in transmission. III. Overload or unload message. IV.&nb
State how many chambers do the bird heart and the mammalian heart have? Concerning the maintenance of temperature specify the benefit of double and complete circulation of these animals?
Name the chemical elements which form most of living biological matter?
Describe wall resistance of plant cells? Does this resistance facilitate or make hard the entrance of water into the cell?
Specify the stage of cardiac cycle during which the ventricles are generally filled?
Give a brief explanation of plant cell vacuoles. And also write down their properties. What is covering membrane of vacuoles called?
Can the heat capacity of water be thought big or small? Write the biological importance of that characteristic?
Is interphase of meiosis distinct from the interphase of mitosis?
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