Day 1 Flashcards
Actinistia
Coelacanths: A class of osteichthyes that are lobe finned fish; only two forms are still alive as most are extinct. Gnathastomes (jaws)
Actinopterygii: ray fines fishes (bony)
A class of osteichthyes that are ray finned fish; they use their swim bladder for buoyancy Gnathastomes (jaws)
Alternation of generations
A life cycle in which there is both a multicellular diploid form, the sporophyte. and a multicellular haploid form, The gametophyte
Amniotic egg
A shelled, water retaining egg that enables reptiles, birds and egg laying mammals to complete their cycles on dryland. Contains amnion, chorion, yolk sac, and allantosis.
Amphibia
Vertebrate animals that are ectothermic; most can breathe it in water with gills as as young and breathe with lungs on, go through metamorphosis, lay jelly-like eggs. The major group of amphibians are frogs (Anura), caecilians (Apoda), and salamanders (urodela).
Annelida
Segmented worms
Anthropoids
Humanlike primates. (Ex: humans and apes and most monkeys) new world monkeys
Apes
Gibbons orangutans chimps gorillas humans
Apical meristems
Embryonic plant tissue in the tips of roots and in the buds of shoots that supplies cells for the plant to grow in length
Aposematic
The bright coloration of animals with effective physical or chemical defenses that acts as a warning to predators
Archaeopteryx
The first bird like fossil discovered. Which shows both bird characteristics (flight and feathers) and dinosaur characteristics (teeth and Bony tail)
Arthropoda
Insects, arachnids, crustaceans, segmented bodies, paired jointed legs, chitinous exoskeleton, open circulatory system, dorsal heart.
Australopithicus Africanus
Taung child. Raymond dart. 1924. South Africa. Chino sized brain. Short broad ilium. Lumbar lordosis. 3.2-2.2 mya.
Bayesian mimicry
Species mimics the appearance of an unpalatable or harmful.
Bilateral symmetry
Body plan in which a single imaginary line can divide the body into left and right sides that are mirror images of one another
