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the increase of alleles of certain genes from generation to generation that allows a species to survive and reproduce better.
What nervous system activates the body's fight-or-flight response?
sympathetic nervous system (in presence of stress, the heart beats faster and stronger, more blood is carried to the vital organs, and the pupils dilate to prepare body to defend itself)
water undergoes relatively minor temperature and phase changes compared to other substances due to its...
high specific heat ad high heat of vaporization.
when a new species is being named and classified the new classification system relies more heavily on... similarities than ...
DNA sequence, physical characteristics
Hydrocarbons with double bonds obey what general formula?
CnH2n (C4H8) Number of Hydrogen atoms are always double the number of Carbon atoms.
what muscle tissue are responsible for peristalsis that occur in the digestive tract?
smooth muscle tissue
___, ____, and ___________ is considered to be external factors that enzyme activity is driven by.
pH, temperature, and substrate concentration
Covalent bond is the____ of electrons while ionic bond are the ... electrons to complete valence structure.
sharing, donating and accepting
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