Zoology
Structure, formed from the tissues of both the young and the mother, nourishes a developing mammal embryo.
Placenta
Hottest and diest biome.
Desert
Animals that are active during the day are considered ?
Diurnal
A hawk captures ans eats a rabbit
Predation
An animal with a backbone.
Vertebrate
Type of symmetry that characterizes mammals.
Bilateral Symmetry
Found near the equator and characterized by abundant rainfall.
tropical rainforest
Plants are usually on this trophic level of a food chain.
second
Bees feed on nectar from flowers and carry pollen from flower to flower.
Mutualism
Species that do not exist on Earth today.
Extinct
Gnawing mammals like mice, beavers and squirrels.
Rodents
Found at high mountain altitudes.
Alpine tundra
The maximun population size that an ecosystem can currently support is the ?
Carrying capacity
An orchid grows on a tree branch, neither hurting or helping the tree.
Commensalism
All ecosystems can be either aquatic or ?
terrestial
Raise their young in special abdominal pouches.
Marsupials
Artic Tundra
A model showing all possible feeding relationships at each trophic level.
Food Web
Wheat rust fungas grows on wheat, stealing nutrients from the wheat hindering its growth
Parisitism
An ecosystems ability to withstand and recover from changes.
Stability
Odd-toed hoofed mammals, such as rhinoceroses, horses and tapirs.
Perissodactyls
Characterized by well defined seasons and sufficient pecipatation
Temperate decidiuos forrest
The first organisms thta colonize a disturbed ecosystem.
Pioneer species
A snake and an eagle both eat rodents from the same limeted aerea.
Competition
The study of how living things interact is ?
Ecology