Choanocytes are body cells of sponges and pinacocytes are flat shaped cells that make up the pinacoderm of sponges. The key difference between choanocytes and pinacocytes is that choanocytes contain flagella while pinacocytes do not contain flagella. Spongiology is the branch of biology that focuses on the study of sponges. Sponges belong to the phylum […]
Difference Between Life Cycle of Butterfly and Cockroach
The key difference between life cycle of butterfly and cockroach is that the life cycle of butterfly consists of four stages; that are the egg, pupa, larva and adult, while the life cycle of cockroach consists of three stages; that are the egg, nymph, and adult. Different species show different life cycles. The stages of […]
Difference Between Worms and Parasites
The key difference between Worms and Parasites is that not all worms are dependent on another living organism for their survival whereas all parasites are dependent on another living organism for their survival. Worms and Parasites are two groups of living organisms. Among the different types of living organisms on Earth, some are free-living while […]
Difference Between Nematodes and Cestodes
Nematodes vs Cestodes Nematodes and Cestodes are worm groups. The key difference between Nematodes and Cestodes is that Nematodes are roundworms whereas Cestodes are flatworms. The kingdom Animalia is comprised of several phyla. Phylum Nematoda includes round worms, which are pseudocoelomates. Phylum Platyhelminthes includes worms that are flattened dorsoventrally and acoelomates. Cestoda is parasitic worm […]
Difference Between Acrania and Craniata
Key Difference – Acrania vs Craniata Both Acrania and Craniata belong to the phylum Chordata. The key difference between Acrania and Craniata is based on the presence or the absence of head or skull in the particular organism. The organisms belonging to the subphylum Acrania do not have a cranium or a distinguished head […]
Difference Between Autotomy and Regeneration
Key Difference – Autotomy vs Regeneration Autotomy and Regeneration are two processes shown by certain living organisms. The key difference between Autotomy and Regeneration is that during autotomy body parts are removed or shed from the body while in regeneration, removed body parts are replaced or developed into a new organism. Autotomy refers to […]
Difference Between Aves and Mammals
Key Difference – Aves vs Mammals Aves (birds) and Mammals are two vertebrate groups. The key difference between them is that the Aves do not have mammary glands while Mammals have mammary glands. Kingdom Animalia is comprised of animals that are multicellular (metazoa) and unicellular (protozoa). Multicellular animals are two groups; vertebrates and invertebrates. […]
Difference Between Telolecithal and Centrolecithal Egg
Key Difference – Telolecithal vs Centrolecithal Egg There are different types of eggs (ova), and based upon the distribution of the egg yolk, eggs are categorized as Telolecithal and Centrolecithal egg. The key difference between the Telolecithal and Centrolecithal eggs is based on the distribution of the yolk in the cytoplasm of the ovum. […]
Difference Between Radial and Spiral Cleavage
Key Difference – Radial vs Spiral Cleavage Cleavage can be of two groups that highly depend on the amount of yolk in the egg. These two types are holoblastic (entire) cleavage or meroblastic (partial) cleavage. Radial and Spiral cleavage two types of holoblastic cleavage. Radial cleavage is present in deuterostomes while spiral cleavage is […]
Difference Between Metazoa and Eumetazoa
Key Difference – Metazoa vs Eumetazoa Metazoa and Eumetazoa are two groups in the kingdom Animalia. The tissues of metazoa demonstrate true multicellularity without a true gut while eumetazoa contains tissues that are differentiated into true tissue forms. This is the key difference between metazoa and eumetazoa. The animal kingdom has been subjected to […]
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