The complex mixture of polymers coating the spore that protect the spore from dessication and UV radiation is ____
Fill in the blank with the appropriate word.
sporopollenin
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What is the spontaneous process by which the base-pairing occurs between two strands of DNA?
a. differentiation b. duplication c. hybridization d. polymerization e. replication
Due to the force of gravity, if an object is on top of a hill or in a position off the ground, it has
A. kinetic energy B. gravitational potential energy C. elastic potential energy D. chemical potential energy
A woman who becomes obese during pregnancy runs the risk of all the following pregnancy complications EXCEPT
A. miscarriage B. stillbirth C. neonatal death D. spina bifida
Which elements are most often the limiting nutrients for plant growth?
A) nitrogen, potassium, phosphorus B) nitrogen, oxygen, hydrogen C) carbon, sodium, chlorine D) carbon, nitrogen, oxygen