Terrestrial plants obtain carbon dioxide, required for photosynthesis, from the:a
soil.
b. roots.
c. atmosphere.
d. water.
e. sun.
C
Biology & Microbiology
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A series of programmed changes encoded in DNA, through which a fertilized egg divides into many cells that ultimately are transformed into an adult organism, is known as ____
a. transformation b. development c. inheritance d. homeostasis e. compensation
Biology & Microbiology
In water, NaOH almost completely separates into Na+ and OH- ions. Thus, NaOH is _____
a. a strong acid b. a strong base c. a weak acid d. a weak base e. neutral
Biology & Microbiology
The mineral particles in soil include all of the following except ________
a. silt b. humus c. sand d. clay
Biology & Microbiology
Oversecretion of growth hormone in adulthood results in
a. pituitary gigantism. b. acromegaly. c. pituitary dwarfism. d. diabetes insipidus. e. cretinism.
Biology & Microbiology