The way the pill works is by
A. preventing ovulation, not preventing a birth.
B. acting as a barrier to prevent the sperm from reaching the egg.
C. causing premature release of the egg.
D. creating irritation in the uterus that prevents implantation.
A. preventing ovulation, not preventing a birth.
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Growth rings may be used to determine the age of trees in seasonal climates
A. true B. false
Which repair mechanism requires light energy?
A. nucleotide excision repair (NER) B. base excision repair (BER) C. mismatch repair (MMR) D. photoreactivation E. transcription coupled repair
Four of the five answers listed below are types of bones. Select the exception
a. immovable b. long c. short d. flat e. irregular
In which of the following kingdoms are mitochondria not present in organisms?
A. Protista B. Plantae C. Archaea D. Animalia E. Fungi