Do echinoderms contain an excretory system
Do echinoderms contain an excretory system? How is the excretion completed in such animals? Answer: Echinoderms do not contain an excretory system. Their excretions are removed by diffusion.
Do echinoderms contain an excretory system? How is the excretion completed in such animals?
Answer: Echinoderms do not contain an excretory system. Their excretions are removed by diffusion.
Write the difference between respiration through cutaneous and diffusion respiration? Explain if blood participate in the cutaneous respiration?
Give a brief explanation of auto immunity.
Which are the main types of animal tissue?
Write the characterizations of amphibians according to illustrations of representing beings, fundamental morphology, skin, circulation, respiration, nitrogen waste, thermal control and kinds of reproduction?
To what order does each of the echinoderm species Star fish and sea urchin belong? Describe why they are classified under that order.
Specify the tissue which the heart is made up? And also explain how this tissue is oxygenated and nutrified?
What is acquired immunity?
Describe how does cellular immune response take place?
Do sea urchins encompass teeth illustrate their teeth structure?
Explain whether the arteries or veins comprises of more muscle tissue? How the walls of these two types of blood vessels are different?
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