Which function below is not performed by the gills of bony fishes?
a. extract nutrients from the water
b. extract oxygen form the water
c. eliminate carbon dioxide from their body
d. aid in osmoregulation
A
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The ____ is responsible for making the lipids that form the cell’s membranes
a. rough ER b. smooth ER c. Golgi body d. peroxisomes e. mitochondria
Which of the following would be the most likely reason for high resistance of capillaries to blood flow?
a. the diameter of capillaries being so small that the white blood cells must squeeze b. the diameter of capillaries being so small that that the red blood cells must squeeze c. the diameter of capillaries being so large that the red blood cells must fill it all up d. the diameter of capillaries being so large that the white blood cells must fill it all up
What is the first step in the process of transferring the blight-resistant gene from one organism
to another?
a. Identify the gene that you need. b. Insert the gene into a plasmid. c. Transcribe and translate the gene. d. Decode the DNA.
Scientists use the term "theory" when discussing the theory of gravity because ________
a. it is better to be vague than to be proven wrong b. they anticipate finding locations where things fall up c. not all scientists are convinced about the reality of gravity d. a theory is the term used to describe a hypothesis that is very thoroughly tested