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Q What is the system that permits fixation and movement to echinoderms?
The system that permits fixation and movement to substrates in echinoderms is called the ambulacral system. In these animals water enters through a structure called madreporite passes through channels and reaches the ambulacral feet in the undersurface of the body. In the ambulacral region in contact with the substrate there are tube feet emptied and filled by water thus acting as suckers.
the concept that new varieties of organisms are still evolving is best supported by the.......?
Q. How Tyndallisation used for sterilization? John Tyndall devised a process of sterilisation by steaming for a few minutes at 100 o C on 3-4 successive operations separated by
Q What do protozoans "eat"? Do they move in search for food? Protozoans are heterotroph beings that are they do not make their own food and thus they need to search for it in t
Define Transverse section of body of male Ascaris? 1. Body wall consists of the following: (a) Cuticle is the outermost layer. It is a thick, tough, elastic membrane
Explain Neurologic disease For patients with facial nerve palsy alone, oral doxycycline or amoxicillin may be effective. Patients with other neurologic involvement, such as men
Ask question #i need the complete table having the names of the diseases their causative agents and their control,caused by air-borne pathogens?
heating a food sample with Benedict''s solution is a test for...
Food Spoilage Bacteria - Lactobacillus Different organisms of this group, also known as "lactic acid bacteria", have different properties but all of them produce lactic acid fro
Define the Peripheral Nervous System (PNS) Peripheral nervous system consists of cranial and spinal nerves. There are twelve pairs of cranial nerves. They arise from brain.
What happens when the oxygen supply is insufficient to maintain aerobic cellular respiration during muscle exercise? If oxygen from hemoglobin or myoglobin is not enough for th
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