100% CORRECT (VERIFIED)
3rd Trimester - ANSWER-Rapid growth, fetus doubles in size during the last two
months.
Actinopterygiians - ANSWER-Ray-finned fish. lungs evolved into gas bladder to help
control buoyancy
Advantages of asexual reproduction - ANSWER-Exponential population growth,
everyone can reproduce
Age Structure - ANSWER-provides information of birth and death rates, along with
longevity of individuals, and proportion that is able to reproduce
Agnatha/Hagfish - ANSWER-Class myxini. Two rows of keratine 'teeth.' Slime defense.
Scavenger
Allantois - ANSWER-Encloses a space within the egg where metabolic waste collects
Alpine - ANSWER-Similar to Tundra, Lacks permafrost,
Alpine - ANSWER-Similar to tundra, lacks permafrost, more varying temperatures than
tundra, windy and cold, thing atmosphere
Altruistic behavior - ANSWER-decrease the fitness of the organism exhibiting the
behavior and increase the fitness of the recipient
Ametabolous metamorphosis - ANSWER-young and adults both wingless, only change
in size
Amnion - ANSWER-a membrane surrounding a fluid filled cavity that allows the embryo
to develop in a watery environment. Huge impact on animals abilities to reproduce w/o
water.
Amphibians - ANSWER-Rely on free water for reproduction
Anthropocene period - ANSWER-What scientists refer to as the modern era,
emphasizes the dominant impact of humans.
aposematic coloration - ANSWER-Bright colors on animals that warn predators of their
toxicity
Associative learning/conditioning - ANSWER-occurs when an animal links two events
, Behavior - ANSWER-Any action by an organism, usually a response to a stimulus. Part
of the Phenotype
Bilateral Symmetry - ANSWER-Characteristic of Eumetazoa, only one plane of
symmetry
Biogeochemical cycles - ANSWER-The cycles of carbon and other biologically
important elements. Links organisms and their environment in the chemical cycling of
raw materials.
Biomes - ANSWER-Broad geographic areas with similar sets of communities
Blastula - ANSWER-Further cell divisions after the morula result in the blastula, a fluid
filled ball of cells. Marks the beginning of implantation into the uterine lining.
Budding - ANSWER-Form of asexual reproduction in which a bud/protrusion forms on
an organism and eventually breaks off to form a new organism that is smaller than its
parent
Census - ANSWER-Count every individual, usually not practical
Chondrichcytes - ANSWER-Cartilaginous Fish. aka sharks and rays, entirely predatory
Chorion - ANSWER-surrounds the entire embryo along with its yolk and allantoic sac.
Limits water loss and allows has exchange within environment.
Circadian Clocks - ANSWER-regulate many daily rhythms in animals
Class Chilopoda - ANSWER-Centipedes, 1 pair legs a segment, venomous, predators
Class Diplopoda - ANSWER-Millipedes, detrivores, 2 legs a segment
Class Malacostraca - ANSWER-Crabs, shrimp, lobster, crayfish, woodlice
Class Maxillopoda - ANSWER-Barnacles
Class Xiphosura - ANSWER-Horseshoe Crabs, highly social and mating events are a
timed event. Glow in UV
Cleavage - ANSWER-First set of mitotic division after fertilization of zygote. Single large
egg divides into many smaller cells.
Cnidaria - ANSWER-Corals and Jellyfish. Diploblastic, radial symmetry, tentacles
around mouth to catch prey, have cnidocytes (stinging cells), single mouth/anus.
Tentacles hand down to allow for easy prey capture and digestion.