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Three cards are dealt from a standard deck of 52 cards, containing 26 red cards and 26 black cards. Write down the probability that: the first card is red and the second two black; exactly one of the cards dealt is red; at least one of the cards dealt is red. Solution a) 26/52 * 26/51*25/50 = 0.125 b) 26/52 * 26/51*25/50 = 0.125 c) 1 - no card is red = 1-(26/52 *25/51 *24/50) = 0.883

(d) Why does a CT image have better soft tissue contrast than an X-ray image? (5 pts) Solution Computed tomography (CT) has better contrast resolution between tissues of differing density. CT scan produces detailed and high-quality images of the body than the X- Ray. The CT scan is a more sophisticated and powerful X-ray, which takes a 360o image of internal organs, the spine and vertebrae. Contrast dyes are injected into the blood for clear visibility of structures within the body o...

5. Order the following events (1 through 8, with 1 being the first and 8 being the last) as they would occur during an infection. (8 pts) Cytotoxic T lymphocytes kill infected cells at site of infection Neutrophils enter site of infection in great numbers Infection is cleared Microbes infect tissue Fever is induced TNF- is induced in macrophages T lymphocytes are activated Complement system is activated Solution 1. Microbes infect tissue 2. Neutrophils enters the site of infection i...

As you step into a new baking shop, you smell the freshly baked bread and pastries which ensues in saliva production. What phase is initiated? evacuation gastric intestinal cephalic Deep sea diving is a very exciting but dangerous exercise, which gas can cause death when it is not released properly? O_2 N_2 CO_2 H_2O Solution 1. The cephalic phase of gastric secretion occurs even before food enters the stomach, especially while it is being eaten. It results from the sight, sm...

14. Parkinson's disease is caused by loss of dopaminergic neurons of the A. Cerebellum B. Basal ganglia (nuclei) C. Brainstem D. Primary motor cortex E. Thalamus 15. "Dual innervation" refers to an organ receiving A. two nerves from the spinal cord B. both autonomic and somatic neurons C. both sympathetic and parasympathetic neurons D. both spinal and cranial nerves E. none of the above 16. Effector organs of the autonomic nervous system include all of the following except A. Heart...

A youngster in a boat on a lake watches waves that seem to be an endless succession of identical crests passing with a half-second interval between each. If every disturbance takes 1. 5 s to sweep straight along the length of her 4. 5-m-long boat, what are the frequency, period, and wavelength of the waves. Solution L =4.5 m t = 1.5 s T = 1/2 s f = 1 / T =2.0 Hz v = L/t = (4.5 m)/(1.5 s) = 3.0 m/s d= v/f = (3.0 m/s)/(2.0 Hz) = 1.5 m

AL Pst Shavld ave at least 150-200 w Add an example prom a tet booK ointene research (don't For +o correctly Ce your Source at +he botiom Of vour pos sease-Causn of natural ffectt en Selection to explain thearowing resistounce to antibiofics and ideas) -For ma t Ctatuns as per MLA style Ntes:DisusS(o S based Dn wwhy Does Mo lution matter now" vico DE tubberwlosis and the evolten o muttiple dna- resustant 5 trains of Te Solution ANSWER: They are learning to to fight the antibio...

A small tunnel is dug near the edge of a cliff. One end of the tunnel is on top of the cliff where the wind is blowing. The other end comes out the side of the cliff where there is no wind. In which direction will the air in the tunnel move? out the top out the side of the cliff. Solution Hi, If you like my answer, please rate my answer first and according to my answer...that way only I can earn points. Thanks according to BERNOULLI'S LAW the velocity of air ...

A square, single-turn wire loop 1.00 cm on a side is placed inside a solenoid that has a circular cross section of radius 3.00 cm, as shown in the figure below. The solenoid is 25.0 cm long and wound with 110 turns of wire. If the current in the solenoid is 4.00 A, find the flux through the loop. T middot m2 If the current in the solenoid is reduced to zero in 2.00 s, find the magnitude of the average induced emf in the loop. V Solution First, find the mag field of the solenoid....

Assessment, Question 22 The flight-or-flight response produces all of the following except: increased heart rate and force of contraction dilation of vessels to the digestive organs increase in blood pressure decreased urinary activity increased glycogenolysis Solution Answer: The flight-or-fight response is nothing but the physiological activity that takes place in the response of the event that are harmful which may include the threat or also the attack. From the above options the...