Heterozygotes with the genotype HbA/HbS have ____
a. sickle cell anemia
b. malaria
c. blood type AS
d. Fanconi's anemia
e. sickle cell trait
ANSWER: e
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Vitamins are ________ substances and minerals are ________ substances that perform essential metabolic functions
a. inessential / essential b. organic / inorganic c. essential / inessential d. inorganic / organic
Decomposing organic material that releases nutrients that are used by plants is called ____
a. humus b. loam c. silt d. bedrock e. a macronutrient
Living organisms are categorized into two major groups based on the presence or absence of a nucleus. What group is defined by the presence of a nucleus?
A) mitochondrial organism B) eukaryotic organism C) prokaryotic organism D) bacterium E) virus
A cell that has acquired the capacity to grow suspended in solution is
A) infected with a virus. B) immortalized. C) apoptotic. D) anchorage-independent. E) density-dependent.