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BIOLOGY 1402 TTU HELD
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EXAM 1 QUESTIONS AND
CORRECT VERIFIED
ANSWERS 100% GUARANTEED
PASS A+ GRADE
,Change in the frequency of traits in a population
(darker)
Evolution
Cause of the change(cause of evolution) where only the best fit survive
natural selection
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Increase of fitness in population(ex. camouflage)
Adaptation
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differences that are passed from one parent to offspring. traits that can be SELECTED (ex
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colors)
Heritable Variations
Community of species adapted to a region of the Earth. and/or. ecological associations that
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occupy broad geographic regions of land or water. dictated by geometry.
Biome
A complex molecule containing the genetic information that makes up the chromosomes.
provides master instructions for all cell's functions.
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DNA
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A set of instructions coded in DNA molecules that specifies the traits of an organism. Precise
information in units of inheritance.
Genetic Information
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Different latitudes on Earth receive different amounts of sunlight, and are a key factor in
determining a region's climate. HIGHER latitudes receive LESS HEAT. LOWER latitude areas
nearer the equator receive MORE HEAT.
latitude vs climate
the region surrounding the equator between 23.5 north and south. least seasonal variation.
tropics
, distinct seasonal variation occurs here. the latitudes between the tropics and Arctic circle and
Antarctic circle.
Temperate Zones
a dry region of land on the side of a mountain range that is protected from the prevailing winds.
Rain shadow
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carry air toward the mountain range. As the air rises up over a mountain range, the air cools,
water vapor condenses, and clouds form. result from the effects of rising and falling air masses
and earths rotations.
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prevailing winds
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a substance that cannot be broken down to other substances by chemical reactions
Element
a substance consisting of two or more different elements combined in a fixed ratio.
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Compound
the smallest unit of matter that still retains the properties of an element
Atom
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two or more atoms held together by covalent bonds. smallest unit of compounds.
Molecule
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A subatomic particle with a single positive electrical charge, found in the nucleus of an atom.
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proton
A subatomic particle that is electrically neutral, has no charge, and that is found in the nucleus
of an atom
Neutron
a subatomic particle with a single negative charge. not in nucleus.
Electron