describes plants that lose their leaves during part of the year, usually winter, to conserve water (by preventing transpiration through the leaves). Maples, oaks, and dogwoods are examples. Common in temperate regions with four seasons.

type of plant that produces its seeds in cones, and usually has tough, waxy, needle-like or scale-like leaves that conserve water and stay green all year. Pines, spruces, and hemlocks are examples. most common plant type in the Taiga

a permanent layer of frozen soil found in the Tundra biome

the change over time in the types of plants and animals found in an ecosystem as it matures and develops richer soil or recovers from a disturbance

an adaptation in which a species evolves to look or act like another species that has a defense such as poison, to avoid predators by tricking them.

an adaptation of some species to travel from one ecosystem or biome to another to take advantage of seasonal resources. Many birds do this in winter.

an adaptation of some species to go into a deep sleep to conserve energy during winter when there is little food available. Animals like squirrels, bears, bats, snakes, and frogs do this.

a process in which excess nutrients like Nitrogen and Phosphorous enter an aquatic ecosystem such as a lake. This causes excess growth of algae and decomposition, which uses up oxygen and suffocates fish and other organisms.

a response to light stimulus in which the organism (usually a plant) grows or leans toward light.

a measure of the "saltiness" - the dissolved salt content in water - expressed in parts per thousand (ppt) or parts per million (ppm).

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Vocabulary #14

Units 9 & 10

Term	Definition
131. deciduous	describes plants that lose their leaves during part of the year, usually winter, to conserve water (by preventing transpiration through the leaves). Maples, oaks, and dogwoods are examples. Common in temperate regions with four seasons.
132. coniferous	type of plant that produces its seeds in cones, and usually has tough, waxy, needle-like or scale-like leaves that conserve water and stay green all year. Pines, spruces, and hemlocks are examples. most common plant type in the Taiga
133. permafrost	a permanent layer of frozen soil found in the Tundra biome
134. succession	the change over time in the types of plants and animals found in an ecosystem as it matures and develops richer soil or recovers from a disturbance
135. mimicry	an adaptation in which a species evolves to look or act like another species that has a defense such as poison, to avoid predators by tricking them.
136. migration	an adaptation of some species to travel from one ecosystem or biome to another to take advantage of seasonal resources. Many birds do this in winter.
137. hibernation	an adaptation of some species to go into a deep sleep to conserve energy during winter when there is little food available. Animals like squirrels, bears, bats, snakes, and frogs do this.
138. eutrophication	a process in which excess nutrients like Nitrogen and Phosphorous enter an aquatic ecosystem such as a lake. This causes excess growth of algae and decomposition, which uses up oxygen and suffocates fish and other organisms.
139. phototropism	a response to light stimulus in which the organism (usually a plant) grows or leans toward light.
140. salinity	a measure of the "saltiness" - the dissolved salt content in water - expressed in parts per thousand (ppt) or parts per million (ppm).

Created by: coradesj

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