Environmental factors that might cause or contribute to schizophrenia include
A) infection by smallpox virus.
B) maternal malnutrition.
C) excess oxygen to a fetus.
D) maternal use of anti-depressants.
B) maternal malnutrition.
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What is the term for a short section of an underground stem that is encased by overlapping layers of thickened, modified leaves (scales)?
a. corms b. tubers c. bulbs d. stolons e. rhizomes
In which condition are both alleles expressed in the heterozygous phenotype?
A) pleiotropy B) codominance C) epistasis D) complete dominance
All of the following are true statements about ATP EXCEPT that it is
A) the cell's principal compound for energy transfers. B) the molecule that all living cells rely on to do work. C) synthesized only within mitochondria. D) a short-term energy-storage compound.
How did Darwin develop his theory of evolution?
A. Experimentation. B. Statistical analysis. C. Both experimentation and observation. D. Observation.