Earth’s Surface and Air Temperature
This chapter focuses on air temperature —that is, the temperature of the air as observed at 1.2 m (4 ft) […]
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Lead
Gastropoda: Feeding Habits
Feeding habits of gastropods are as varied as their shapes and habitats, but all include use of some adaptation of
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Gastropoda: Torsion and Coiling
Torsion Gastropod development varies with the particular group under discussion, but in general there is a trochophore larval stage followed
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Rotifers: Reproduction
Rotifers are dioecious, and males are usually smaller than females. However, despite having separate sexes, males are entirely unknown in
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Classes of Molluscs: Polyplacophora, Scaphopoda
Chitons (Gr. coat of mail, tunic) repreent a somewhat more diverse molluscan group with about 1000 currently described species. They
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Classes of Molluscs: Caudofoveata, Solenogastres
For more than 50 years five classes of living molluscs were recognized: Amphineura, Gastropoda, Scaphopoda, Bivalvia (also called Pelecypoda), and
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সমুদ্রের স্বাদ: মধ্যবিত্তের জীবনযন্ত্রণার স্বরূপ
অর্থনৈতিক দৈন্য মধ্যবিত্ত জীবনস্তরে জন্য এক মারাত্মক অভিশাপ। প্রাত্যহিক জীবনের ক্ষুদ্র ক্ষুদ্র স্বপ্ন আশা গুলো যখন দারিদ্র্যের কারণে প্রতিমুহূর্তে দলিত
সমুদ্রের স্বাদ: মধ্যবিত্তের জীবনযন্ত্রণার স্বরূপ Read More »
An Introduction to Molluscs
Mollusca (mol-lus’ ka) (L. molluscus, soft) is one of the largest animal phyla after Arthropoda. There are over 90,000 living
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Phylum Brachiopoda and Phylum Phoronida
Brachiopoda (brak-i-op’ – o-da) (Gr. brachio¯n, arm, pous, podos, foot), or lamp shells, are an ancient group. Although about 325
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Molluscs: Form and Function
The enormous variety, great beauty, and easy availability of shells of molluscs have made shell collecting a popular pastime. However,
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