Which ecosystem has the highest actual evapotranspiration?
A) creosote-bush desert
B) tallgrass prairie
C) pine forest
D) beech-maple forest
C
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Which phrase defines the function of smooth muscle?
A. slow, involuntary movements in multiple organs B. skeletal movement C. heart contraction D. flexible support E. connects muscle to bone
An evolutionary model of animal development indicates that _____
a. differentiation is positional within a zygote b. homeotic genes are not universal among animals c. homeotic genes are found only in fruit flies, where they are responsible for odd placement of appendages d. new genetic lines are produced less by modification than by unique mutation e. somites form as blocks of genes in cells randomly distributed throughout the body
________ organisms are unable to regulate their body temperature and must rely on ________ to maintain optimal membrane fluidity
Fill in the blank with correct word.
A(n) ________ occurs when a warm, stagnant layer of air traps a cooler mass of air containing smog below it
Fill in the blank(s) with correct word