Tumors can cause an increased in the blood supply through chemical signals that stimulate angiogenesis

a. true
b. false


Ans: a. true

Biology & Microbiology

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Scientists believe that stimulating growth of algae and other organisms can reduce carbon dioxide amounts in the atmosphere. Where is carbon dioxide consumed in a plant cell?  

A.  Matrix in mitochondria B.  Cellulose in cell wall C.  Stroma in chloroplasts D.  Number of amyloplasts E.  Central vacuole Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean?   Gather Content · What do you know about plants using carbon dioxide? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Almost all plasmids are double-stranded DNA

Indicate whether the statement is true or false.

Biology & Microbiology

Rats learning to press a lever to receive food is an example of

A. avoidance. B. operant conditioning. C. habituation. D. inoperant conditioning. E. negative reinforcement.

Biology & Microbiology

You set up an EcoRI restriction digest for a sample of genomic DNA from an individual with a mutation in the ?-globin gene. You perform a Southern blot using the entire ?-globin gene as a probe

To your surprise, you notice a different pattern of bands in the affected individual – you have identified a new SNP! What can you conclude from the pattern of bands from the Southern blot below? A) The SNP resulted in the loss of an EcoRI site. B) The SNP resulted in the creation of a new EcoRI site. C) The SNP resulted in the loss of an exon. D) The SNP results in the creation of a new HindIII site. E) There was no change in the genomic DNA sequence.

Biology & Microbiology