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13 Cards in this Set
- Front
- Back
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The oldest person on record to ever live was Jeanne Calment, who lived to be ________ years old.
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122
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In the USA there are over _____________ and over ___________ centenarians world wide.
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22,000; 200,000
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The oldest living organism on Earth is the ____________ which was estimated at ____________ years old.
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Bristlcone pine tree; 4600
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In the early 20th century the life expectancy was _______ years old and today it is much greater (77-81 years), which can be attributed to ____________ advances.
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50; technological
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Life expectancy is different from life span in that the life expectancy of an organism is subjected to ____________ factors, which can vary greatly.
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enviornmental
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ICSI is a technique where _________ is directly injected into the _____________.
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sperm, egg
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Forming the __________ is the first step of the life cycle.
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blastocyst
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The Giant clam releases _________ first into the ocean and then waits 30 minutes before releasing the eggs, which allows for __________ between different individuals.
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sperm; cross fertilization
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The Christmas Island crabs make a pilgrimage to the shore to lay their _________ in the ocean even though they reside on ____________.
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eggs, land
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It was ___________ that evolved a way to eliminate the need for an external source of food for their young.
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mammals
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In placental mammals they evolved a _________ which allows them to develop a fertilized egg to term.
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uterus
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After fertilization the embryo attaches to the uterus and produces the ____________ which will transfer the nutrients gained from the mother to the fetus.
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placenta
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Humans are nothing more than a collection of molecules composed of __________, ____________, and ___________, yet we are one of the most complex creatures on Earth.
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hydrogen, oxygen, carbon : can be in any order
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