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40 Cards in this Set

  • Front
  • Back
Incubate
keep eggs warm until they hatch
Contour Feathers
strong and lightweight, help birds fly
Down Feathers
soft and fluffy, insulate birds
Preening
process of using beak to rub oil over its feathers
Mammary Glands
glands that produce milk for feeding young
Herbivore
animal that eats only plants
Carnivore
animal that eats only other animals
Omnivore
animal that eats both plants and animals
Placentals
mammals in which embryos develop inside the females uterus
Gestation Period
time during which an embryo develops in the uterus
Placenta
saclike organ developed from tissues of the embryo and uterus
Umbilical Cord
attaches the embryo to the placenta
Mursupials
pouched mammals that bear immature offspring
Monotremes
mammals that lay eggs with tough, leathery shells
Mammals
endothermic vertebrates that have hair and produce milk to feed their young
Cyclic
behavior occurring in repeating patterns
Social
interacting behaviors among the same species
Imprinting
social attachment formed right after birth
Migration
seasonal movement of animals
Courtship
behavior performed before mating
Hibernation
slowed metabolism during the cold weather
Instinct
complex pattern of innate behavior
Society
members of the same species living together in an organized way
Behavior
way an animal acts toward its environment and other animals
Reflex
an automatic response that does not involve a message from the brain
Aggression
forceful act used to control another animal
Pheromone
chemical that allows animals to communicate
Innate
behavior an organism inherits
Phloem
tubes that move food from where it is made to other parts of the plant
Non-Vascular Plants
plants without vascular tissues
Vascular Plants
plants with tissues that carry water and nutrients
Xylem
vessels that carry water and dissolved substances from roots to other parts of the plant
Gymnosperms
vascular plants that produce seeds on the surface of female reproductive structures, such as cones
Angiosperms
vascular plants that flower and have fruits that contain seeds
Pioneer Species
organisms that are the first to grow in new or disturbed areas
Monocots
Plants with one cotyledon inside their seed
Dicots
plants with two cotyledons inside their seeds xylem
Stomata
openings that open and close to allow carbon dioxide, water, and oxygen to enter and exit a leaf
Rhizoids
threadlike structures that anchor non-vascular plants in place
Cuticle
waxy, protective layer on a plant's surface that slows the loss of water