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Define General Characters and Classification of Arthropoda?These are metamerically segmented animals with an exoskeleton of cuticle. Scliizocoelic coelom is much reduced and is replaced by perivisceral haemocoel, which is filled with blood. Circulatory system is of open type. True nephridia are absent, but coelomoducts act as gonoducts and often as excretory organs. Body of the animal is bilaterally symmetrical.
They also bear paired appendages. The phylum Arthropoda is divisible into Chelicerate and Crustacea. In this exercise you will only examine and identify the Arachnida, Crustacea and in the next exercise we will deal with uniramia and onychophora. You will examine, identify and draw labelled line diagrams of the preserved specimens/ permanent slides of the whole mounts of the animals. You are supposed to write the comments on the observations you have made.
Roots have no chlorophyll and grow in darkness. So how do roots obtain their food? Food made in the leaves is transported to the roots in the phloem of the vascular bundles.
Prokaryotes and Eukaryotes By now, you know that cell theory holds good for all living forms. However, if you examine under the microscope, the cells of a bacterium, a blue gr
Q. What is the nitrogen cycle? The nitrogen cycle represents the recycling and circulation of the chemical element nitrogen in nature. The nitrogen cycle fundamentally depends
What is the ranges of tolerance and performance optima? Ranges of Tolerance and Performance Optima : When it comes to physical factors or resources, most species are able to
Mixotrophic nutrition
#what characteristics of green algae that led to biologists considered it as a plant?
The patient will appear anxious and dyspnoeic. Patients in chronic heart failure are usually malnourished and even cachectic. Chronic passive venous congestion may produce exophtha
What is the clinical manifestation of the disease known as daltonism? An X-linked daltonism is a disease in which the affected individual sees the red color as green or confoun
A few individuals from a herd of deer are forced to migrate to a new herd. This is an example of resulting in. a. Gene flow; enhance in similarities between populations.
Give a detailed description of stereoblastula, please ?#
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