Define Adaptive Radiation Correct Answers evolution of a
number of divergent species from a common ancestor
Define Amniotes Correct Answers Vertebrate that develops in
embryo sac.Waterproof skin and efficient kidneys make them
well to dry lands
Define Amphibians Correct Answers Land dwelling
vertebrates that return to water to breed, undergo
metamorphosis, and 3 chambered heart
Define Arthropods Correct Answers Phylum: Arthropoda
Most diverse, with more than a million
Define Bilateral symmetry and give example Correct Answers
an imaginary plane divides an object into right and left halves,
each side being a mirror image of the other
Humans, dogs, most animals
Define Bony Correct Answers Bone skeleton, gill covers, and a
swim bladder
Ray finned fishes, lungfish, and ceolacanth
Define Cartilaginous Correct Answers Cartilage skeleton, gill
slits, and teeth shed
Sharks and rays
Define Cephalization and what kind of animals have this?
Correct Answers tendency in the development of animals to
, localization of important organs or parts (brain) in or near the
head.
Most bilateral animals have this trait
Define Chelicerates Correct Answers No antennae
Marine is horseshoe crab
Land is spiders, scorpions, and ticks
Define Cnidarians Correct Answers Phylum: Cnidaria
Radial symmetry
Medusea drift and float, Polyps stay on ground
Jellyfish, squishy, hydra, anemones
Define Craniates Correct Answers Organisms that have a
braincase of cartilage or bone (cranium) that has the brain and
other sensory structures
Define Crustaceans Correct Answers Marine Arthropods with
2 pairs antennae
Lobsters, crayfish, crabs, and shrimps
Define each class of body cavity Correct Answers Coelom-
body cavity
Pseudocoelom- fake body cavity
Acoelomate- no body cavity
Define Echinoderms Correct Answers Phylum: Echinodermata
Brainless, water vascular system for locomotion
Starfish, urchins, cucumbers
Define Flatworms Correct Answers Phylum: Platyhelminthes