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What type of respiration does earthworm has? In many complex animals, the cells of internal organs are distant from the outside environment; respiratory systems provide the passage of gases to or from internal tissues. In such kind of systems, there is a difference in pressure of a specific gas on opposite sides of a membrane, the gas diffuses from the side of greater pressure to side of lesser pressure, or each gas is transported independently of other gases. For i.e., in tissues a carbon dioxide concentration is high or oxygen concentration is low as a product of active metabolism, oxygen diffuses into the carbon dioxide and tissue diffuses out.
In many lower animals, gas diffusion takes place through a moist surface membrane, as in flatworms; through the thin body wall, as in earthworms; through air ducts, or tracheae, as in insects; or through specialized tracheal gills, as in aquatic insect larvae. In the gills of fish the blood vessels are exposed directly to the external aquatic environment. Oxygen–carbon dioxide swap occurs between the surrounding water & the blood within the vessels; the blood carries gases to and from tissues.
Kingdom Animalia Multicellular, heterotrophic, eukaryotes, tissues are specialised and most of them have organs, mostly highly responsive. Only gametes are haploid, fertilisation
Q. What are the main degenerative diseases of the heart? The major degenerative diseases of the heart are heart failure, arrhythmias, valvular heart diseases, coronary insuffic
what are mendal low
Solid waste management, Other Management The solid wastes from a summer camp with 100 children and a staff of 25 are to be collected once per week. If bottles and cans (representi
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Q. How are amino acids brought to the cellular site where translation takes place? What is an anticodon? Amino acids are brought to ribosomes by RNA molecules known as transfer
Q. What are the Physical Signs of aortic stenosis? Typically the carotid pulse in severe aortic stenosis is delayed (pulsus tardus). It is also decreased in amplitude (pulses p
#White blood cell has mainly 5 types right? which is Neutrophil,Monocytes,lymphocytes, basophil and Eosinophil? I wwanted to know is phagocytes a white blood cell, if yes then why
Hom o sapiens fossilis (CRO-MAGNO N MAN) - Fossils found from Cro-Magnon, France by Mac Gregor (1868) Replaced Neanderthal man about 35.000 years ago Sharp nose
Procedure for Preparation of Selective and Differential Medium Now prepare the MacConkey agar medium following the steps given herewith: 1. Weigh and dissolve all ingredient
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