Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
what is ancient gondwanalanddid you know that the land surface of the earth was once comprised of two super continents called gondwana and laurasia
describe the dinosaurs in multimedia tutorialstravel back to a time when dinosaurs ruled the earth learn about the different types of dinosaurs and
explain the virtual dissection of the rat in multimedia tutorialsthis animation will teach you about basic mammalian anatomy the major organ systems
explain class mammalia in animal kingdomclass mammalia mammals are distinguished by their hair and their mammary glands mammary glands after which
describe class aves in detailsclass aves the fossil record contains evidence that birds evolved from the reptiles birds share anatomical features
what is class reptilia class reptilia include the vertebrates that have successfully transitioned to a terrestrial lifestyle by evolving protective
what is class amphibia class amphibia takes its name from the greek words amphi and bios amphi means both sides or both types and bios means life
explain what is class osteichthyes class osteichthyes takes its name from the greek root osteo referring to bone and ichthys referring to fish the
what is class chondrichthyesclass chondrichthyes takes its name from two greek words chondros means cartilage and ichthys refers to fish therefore
describe class agnatha in detailsclass agnatha takes its name from the greek word gnathos which means jaw and a which is the prefix for without these
what is subphylum vertebrata explainthis large group of animals takes its name from its distinguishing feature the vertebral column or the backbone
explain differance between subphylum chaetognatha and subphylum urochordatasubphylum chaetognatha larval stages of this small group share some of the
describe the phylum chordata in animal kingdomthis is the other group of animals along with the echinodermata whose anus develops prior to the mouths
what is phylum hemichordata the name hemi meaning half provides a clue to these animals which have some of the features of chordates and some
what is class crinoideathis class includes the sea lilies and the feather stars what makes them different from the other echinoderms is the placement
describe class holothuroidea in detailsmembers of this class resemble soft and squishy cucumbers lying on their sides on the bottom of the sea on
describe class echinoidea in animal kingdomsand dollars and sea urchins either have flattened disc-like bodies or are somewhat spherical while they
describe class ophiuroidea in general waybrittle stars have a central disc with five long thin flexible arms that can be detached from the body at
what is class asteroidea sea stars are probably one of the most recognizable of all echinoderms often beautifully colored and symmetrical they are
describe the phylum echinodermata in detailsthe phylum echinodermata takes its name from two words of greek origin echino which means prickle or
define deuterostomes in animal kingdomcoelomate animals are thought to have separated into two divergent lines of evolution in terms of the way
describe class diplopoda and chilopoda in detailmembers of the subphylum crustacea and the subphylum uniramia have one major characteristic in common
what is subphylum crustacea and subphylum uniramiathe arthropoda are usually grouped into four subgroupings called subphyla singular-subphylum one of
describe the classification of arthropodamost arthropods also go through a growth process called metamorphosis whereby they change their bodies into
describe the phylum arthropoda and metamorphosismore than one million different species of arthropods are estimated to exist on the earth today-more