An organism may use glycolysis and the pentose phosphate pathway simultaneously.
Answer the following statement true (T) or false (F)
True
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Why are vasodilation and vasoconstriction the main mechanisms to change blood flow?
A. Sympathetic activation has no effect on blood flow. B. Leakage of fluids from the capillaries has no effect on blood flow. C. Blood hematocrit has no effect on blood flow. D. Blood vessel length is relatively fixed and has no effect on blood flow.
Antibodies from animals such as horses constitute artificially acquired passive immunity.
Indicate whether the statement is true or false.
Sex determination in mammals is due to the SRY gene. Which of the following could allow a person with an XX karyotype to develop a male phenotype?
A) the loss of the SRY gene from an autosome B) translocation of SRY to a X chromosome C) a person with an extra autosomal chromosome D) a person with one normal and one shortened (deleted) X
Where is the apical foramen of the developing tooth?
A. At the root of the tooth; The blood vessels and nerves enter the pulp here. B. Between adjacent developing teeth; The apical foramen is the gap between adjacent teeth. C. Between the developing tooth and the oral cavity: The apical foramen is the hole through which the tooth will emerge. D. Between the growing mass of dentin and odontoblasts; Dentin is secreted into this foramen by odontoblasts. E. Surrounding it; The apical foramen is the cavity in which the tooth develops.