What will happen to volume flow if the radius of a blood vessel is halved? A Flow is reduced 16 times B Flow is increased 20 times C Flow is decreased by half D Flow is decreased by one-fourth

Intense sympathetic stimulation of the kidney increases filtration rate. causes the release of epinephrine from the kidney. decreases renal flow. does not alter filtration rate is necessary for normal kidney metabolism.

The carbons from which of the following molecules is MOST likely to be used in the biosynthesis of glucose? the acetyl group of acetyl-CoA the amino acid alanine palmitate (a fatty acid) ketone bodies

The only successful infectious disease eradication that has occurred so far in human history was the eradication of smallpox but eradicating other viral diseases should be possible. What characteristic of viruses makes it easier to eradicate viral diseases compared to bacterial or eukaryotic diseases? A. Viruses require a host to replicate, so if all hosts are made immune to the virus then the virus will go extinct B. Viruses are relatively easy to destroy with disinfectants and antiseptics C. Viruses can only be spread by direct contact, so isolation of the infected can always stop viral diseases quickly and easily All the above B and C

6. What happens to back ligaments when a person frequently slouches with poor posture? They stretch and lengthen. They contract and shorten. There is no ligament effect. They get strong and healthy.

Fill in the Blank Question The internal parts of cilla and flagella are produced by the square Need help? Review these concept resources.

3 Multiple Choice 1 point If a cow with a red coat (RR)is crossed with a cow with a white coat (WW), and the offspring have a roan coat (red and white patches), this is an example of which type of inheritance? polygenic inheritance incomplete dominance multiple alleles codominance x

Chronic myeloid leukemia (CML) is a genetic disorder associated with the Philadelphia chromosome. The Philadelphia chromosome is a mutation in chromosome 22. Part of chromosome 22 is exchanged with part of chromosome 9, bringing together two genes on chromosome 22 and causing a malignancy. What type of mutation occurs in the Philadelphia chromosome? A. duplication B. insertion C. inversion D. substitution E translocation

1. Identify the phases of the eukaryotic cell cycle. 2. What happens during interphase? 3. Cells go through a series of events that include growth, DNA synthesis and cell division. Why are these events best represented by a cycle diagram? 4. Explain how the cell cycle is regulated. 5. Why is DNA replication essential to the cell cycle? What would happen if DNA was NOT replicated?

Homologous genes within a single species are said to be Multiple Choice orthologs. paralogs. metalogs. xenologs. homologs.

Hot Questions

Select the correct answer. Which of the following phrases best explains the role of a habitat? A. provides interactions with other organisms B. provides water C. provides a place to reproduce D. provides a place to live

Which type of membrane protein moves sodium and potassium through the nerve cell membrane? Junction protein Transport protein Receptor protein Channel protein Enzymatic protein Cell recognition protein

Multiple Select Question Select all that apply Choose all that result from contraction of the lateral muscle of the thigh. abduction of the thigh lateral rotation of the thigh extension of the thigh adduction of the thigh medial rotation of the thigh

Match the Process to the Pool Movement Carbon Moves From -To __ Atmosphere __ __ Bioshpere __ __ __ __ __ Process Photosynthesis Respiration Decomposition Fossil Fuel Combustion __ __

The kidney is associated with which system? A. Endocrine system B. Cardiovascular system C. Skeletal system D. Respiratory system E. Nervous system

What is the direct effect of: Decreased ADH Only CO increases Only CO decreases Only BP increases Only BP decreases Both CO and BP increase Both CO and BP decrease

What are the four phases of a typical bacterial growth curve in order? Exponential, Lag, Death Stationary Lag, Exponential, Stationary, Death Death, Lag, Exponentlal, Stationary $Lag,$ Stationary, Death,Exponential

8. Oxygenated blood from the lungs enters the heart at the: a. left ventricle b. right ventricle c. left atrium d. right atrium

Bacteria that grow optimally at pH levels below 5 are classified as: Neutrophiles Alkaliphiles Acidophiles Halophiles

Which group of bacteria can survive and grow at temperatures below $15^{\circ }C$ Thermophiles Psychrophiles Mesophiles Hyperthermophiles