Teas practice test B science Questions And Answers 2022/2023

Anxiety about an upcoming final exam causes a student to experience an increase in blood pressure dilation of the pupils and a dry mouth. Which of the following nervous system responses is responsible for these physical symptoms? A Voluntary B sympathetic C limbic D cognitive - Answer - B. Sympathetic A blood pressure reading of 120/70 mg hg Refers to the atrial pressure recorded during? A atrial contraction / ventricular contraction B atrial contraction / ventricular relaxation C Ventricular contraction / ventricular relaxation D ventricular relaxation / atrial relaxation - Answer - C ventricular Contraction / ventricular relaxation A blood sample taken from a patient fighting an infection expected to show? A reduced white blood cell count B Elevated white blood cell count C elevated red blood cell count D Reduced red blood cell count - Answer - B. elevated white blood cell count white blood cells increase in number when fighting infection The cause of cell differentiation is that different cells A contains different DNA B have different chromosomes C Contains a similar proteins information D Express alternate genetic information - Answer - D Express alternate genetic information Cystic fibrosis is a homozygous recessive condition. A genetic counselor should advise concerned parents that if each of them has a parent who has cystic fibrosis yet neither of the concerned parents is affected the probability of their potential child having cystic fibrosis is? A 0% B 25% C 50% D 100% - Answer - B. 25% Since each parent is a carrier of the disease (Cfcf), then the child would have a 25% chance of having cystic fibrosis. A first-degree burn involves whi