Answer:
variation,inheritance,high rate of populations growth,differential survival and reproduction
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Answer:
First, any soft tissue that was present in life decays, leaving behind the hard parts: bones, teeth, shells. This usually happens very quickly as a result of bacterial action.
Explanation:
Tadpoles have gills allowing them to breathe underwater while frogs have lungs. Tadpoles have tails and fins to help them swim while frogs have arms and legs.
Answer:
1000 head of beef cattle, 700 dairy cows, 2500 swine weighing more than 55 lbs, 125 thousand broiler chickens, or 82 thousand laying hens or pullets
Answer:
Hydrogen bonding is caused by the tendency of some atoms in molecules to attract electrons more than their accompanying atom. This gives the molecule a permanent dipole moment – it makes it polar – so it acts like a magnet and attracts the opposite end of other polar molecules.
