The abbreviation 'SCOVE' stands for

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#Question id: 19460

#Unit 13. Methods in Biology

In phase contrast unobstructed light passes through a region of________ that both transmits only a small percentage of the light and changes its phase slightly.

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#Question id: 18384

#Unit 12. Applied Biology

Halocarbons are widely used as

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#Question id: 3481

#Unit 11. Evolution and Behavior

Classical conditioning and operant conditioning differ in that

A) classical conditioning takes longer.

B) operant conditioning usually involves more intelligence.

C) operant conditioning involves consequences for the animalʹs behavior.

D) classical conditioning is restricted to mammals and birds.

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#Question id: 5523

#Unit 5. Developmental Biology

Ectodermal cells condense into placodes that change into

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#Question id: 26450

#Unit 3. Fundamental Processes

Which of the following statements is true regarding bacterial RNA polymerase   

a. Core enzyme can efficiently transcribe both intact and nicked DNA 

b. Sigma destabilizes nonspecifically bound core 

c. Holoenzyme bind tightly to DNA 

d. Higher disassociation rate at lower temperature 

e. Most of the cellular sigma are house keeping gene