Question and answer
Which of the following is true about blood pressure? A. It is not affected by atherosclerosis. B. It is typically lower in veins than in arteries. C. It drops a great deal when traveling through
arteries. D. Diastolic pressure is higher than systolic pressure.
B. It is typically lower in veins than in arteries is true
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User: Which of the following is true about blood pressure? A. It is not affected by atherosclerosis. B. It is typically lower in veins than in arteries. C. It drops a great deal when traveling through arteries. D. Diastolic pressure is higher than systolic pressure.

Weegy: B. It is typically lower in veins than in arteries is true
Batista|Points 397|

User: Into what substance is fibrinogen converted in Step C of Figure 33–1? A. thrombin B. fibrin C. platelets D. thromboplastin

Weegy: Platelets are irregularly-shaped, colorless bodies that are present in blood. Their sticky surface lets them, along with other substances, form clots to stop bleeding. [ ]
Expert answered|aivoramos|Points 10|

User: Which of these structures provides the muscle cells in the heart with a constant supply of oxygen? A. the superior vena cava B. the pulmonary artery C. coronary arteries D. systemic veins

Weegy: heart: A. superior vena cava B. pulmonary artery C. left atrium D ... heart through the coronary arteries. [ These branch out to supply the thick heart muscle with oxygen ... b c d e f g ... ]
Expert answered|aivoramos|Points 10|

User: ?

Weegy: A
Expert answered|aivoramos|Points 10|

User: How does movement of the rib cage change air pressure in the chest cavity? A. When the rib cage raises, an increase in air pressure in the chest cavity causes air to rush into the lungs. B. When the rib cage relaxes, an increase in air pressure in the chest cavity causes air to rush into the lungs. C. When the rib cage raises, a decrease in air pressure in the chest cavity causes air to rush into the lungs. D. When the rib cage relaxes, a decrease in air pressure in the chest cavity causes air to rush out of the lungs.

Weegy: A also
Expert answered|aivoramos|Points 10|

User: Which of these is a function of the lymphatic system? A. production of antibodies B. transport of fat-soluble vitamins to the blood C. protein absorption through the small intestine D. all of the above

Weegy: B
Expert answered|aivoramos|Points 10|

User: Which hormone causes the kidneys to conserve water? A. TSH B. thyroxine C. ADH D. corticosteroids

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Asked 9/22/2012 10:54:52 PM
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how old is samantha czarniack from akron ohio born in 1993?
Weegy: She would be 19. User: The arctic fox is blue-gray in the summer and white in the winter. What most likely influence(s) this change? A. genes and the environment B. dominant alleles C. the environment alone D. codominant alleles Weegy: C. the environment alone. User: If an organism’s diploid number is 12, its haploid number is A. 12. B. 6. C. 24. D. 3. Weegy: B. 6. User: Which of the following best describes the what happens during gene expression? A. A cell reads the instructions in DNA and builds a protein based on those instructions. B. A gene is copied many times so that all of a cell’s daughter cells will have their own copy. C. The nucleus of a cell builds cellular proteins based on the sequence of the mRNA code. D. A single gene leaves the nucleus of a cell and travels through the cytoplasm to the membrane. Weegy: A. A cell reads the instructions in DNA and builds a protein based on those instructions. the correct answer User: What regulates the expression of most eukaryotic genes? A. miRNA B. transcription factors C. dicer enzymes D. silencing complexes Weegy: B. transcription factors User: Which of the following joins two pieces of DNA together? A. restriction enzyme B. DNA ligase C. plasmid D. genetic marker Weegy: B. DNA ligase User: are you sure thats the correct answer? Weegy: Enzymes that join DNA molecules together are called DNA ligases. User: do you think the united states did the right thing in takeing millitary actions against iraq? or should have the us stayed out? (More)
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Specialized cells regulate the expression of genes because they A. do not want the genes to become worn out. B. cannot control the translation of proteins. C. do not carry the complete genetic code in their nuclei. D. do not need the proteins that are specified by certain genes.
Weegy: A. do not want the genes to become worn out. User: rita ora lives where? Weegy: Rita Ora was born in 1990 in Pristina, Yugoslavia (now Kosovo)[a] and moved to the United Kingdom in the same year. [ She grew up in West London and attended St Cuthbert with St Matthias CE Primary School in Earls Court, following which she graduated from Sylvia Young Theatre School and then St Charles Catholic Sixth Form College. She began singing from a young age.[2][3] In 2004, she appeared in the British film Spivs.[4] She auditioned for Eurovision: Your Country Needs You on BBC One to be the British contestant for the 2009 Eurovision Song Contest[5][6] but later withdrew from the competition after a few episodes as she did not feel ready.[5] (Wikipedia). ] User: Which of the following could include all the others? A. hybridization B. inbreeding C. selective breeding D. induced mutations Weegy: C. selective breeding User: Why is inserting plasmids in yeast more complex than inserting them into bacteria? A. Yeasts are prokaryotes. B. Yeasts are eukaryotes. C. Yeasts are hybrids. D. Yeasts are inbred. Weegy: B. Yeasts are eukaryotes. User: To produce transgenic bacteria that make insulin, which of the steps listed below would a scientist do FIRST? A. Insert the human insulin gene into a plasmid. B. Extract the insulin from the bacterial culture. C. Cut out the insulin gene from human DNA. D. Transform bacteria with the recombinant plasmid (More)
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