WebbShark and batoid eggs are fertilized internally, as opposed to external fertilization in many bony fishes. Internal fertilization is a key adaptation for energy-intensive reproduction. … WebbTerms in this set (158) heterotrophic, and eukaryotic. all animals are multicellular. body symmetry. radial and bilateral are two terms used to describe the ________ of an animal. sensory organs and a brain. bilateral symmetry is correlated with cephalization, the tendency of _________ to be concentrated at an animals head end.

The little skate genome and the evolutionary emergence of wing …

WebbSKATES & RAYS UNDER THREAT. Like sharks, skates and rays live a long time and start reproducing late in life. They also produce relatively few young. This makes them … WebbAmphibians exhibit _____ fertilization (in the water). skin. Frogs breathe through the lungs and the _____. brain. ... Sharks, skates, and rays. What do skates and rays have in common? both bottom dwellers feeding on mollusks or filer plankton. the philippines enchanted river

Sharks & Rays - Reproduction SeaWorld Parks

WebbThe males of cartilaginous fishes like sharks, skates and rays use claspers to place sperm inside the female’s cloaca and fertilize the eggs. Depending on the species, sharks and … Webbför 2 dagar sedan · These changes arose ~286–221 million years ago (Fig. 1b) after the divergence between sharks and skates. Nevertheless, the genomic and regulatory changes underlying these novel expression... Webb1. Craniates are more highly cephalized than are non -craniates. 2. Craniates genomic evolution includes duplication of clusters of genes that code for transcription factors. 3. … sick computer art