What would happen if you placed a trout (freshwater fish) into a saltwater tank at the aquarium and made some observations?
A. The fish would take on water quickly and
get bloated.
B. The fish would lose water and look
wrinkled.
C. The fish would take on water initially, but
could reverse the direction of Cl– ion
movement to deal with excess water.
D. The fish would lose water initially, but
could reverse the direction of Cl– ion
movement to deal with excess water.
A
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There should be a strong positive correlation between the rate of protein synthesis and _____
A) the quantity of DNA polymerase B) the quantity of RNA polymerase C) the size of mRNA D) the number of ribosomes
Depending on the type of regulatory mechanism, activators and repressors can bind to operator regions which control transcription
Indicate whether the statement is true or false.
Which birth control method does NOT suppress ovulation?
a. emergency contraception pills b. birth control pill c. Progestin implants d. tubal ligation e. progesterone patches
If you found a fossilized dinosaur bone, what could be done to accurately determine the age of the fossil?
A) Extract and sequence DNA from the bone. B) Look at pieces of the bone under a microscope. C) Analyze the isotopes of carbon in the fossil. D) Compare the appearance of the bone to other fossilized bones.