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Q What is the alternative means for transport of substances in animals without a circulatory system? Why is blood important for larger animals?
In animals that don't present the circulatory system the transport of substances occurs by cell to cell diffusion, the blood is a essential means of substance transport for larger animals since in these animals there are tissues distant from each other and from the environment thus making diffusion impossible.
A saline drip is to be prepared for a lab experiment that is looking at hydration in lab rats. Calculate the amount of NaCl need to make 4 liters of a 0.9% solution.
Vegetative Development - Development The process of growth and differentiation of cells into organs and organisms is often termed development. For example, the development of
Briefly explain the following feeding mechanisms in holozoic organisms: filer feeding,fluid feeding and deposit feeding.
CEL L THEORY Proposed by Mathias Jacob Schleiden, 1838 (Jerman Botanist), Theodore Schwann, 1839 (Jerman Zoologist) It consists of 5 fundamental facts - (i) Body of livi
How to increase in sodium conductance A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM. The neuron is healthy. At 2 AM, the ph
Is the epithelium vascularized? How do nutrients and oxygen reach the epithelium? Why is this feature a significant evolutionary acquisition? Epithelia are not vascularized (ca
Pulmonary Function Test: Pulmonary functions tests (PFTs) provide information about a clients manifestation by measuring lung volumes, lung mechanics, and diffusion capabili
Define role of Leptin in controlling gene expression? Leptin is a protein product (containing 167 amino acids) of the ob gene expressed exclusively in the adipose tissue. This
Q. What are sensory receptors? Sensory receptors are structures specialized in the acquiring of information, mechanical pressure, like temperature, pH, luminosity and chemical
What is meant by the arch reflex? In some situations the movement of the skeletal striated muscles does not depend upon commands of the superior motor neurons, i.e., it is not
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