By the ninth week of development, the embryo is called a(n) ____________________
Fill in the blank(s) with correct word
fetus
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Answer the following statements true (T) or false (F)
1. The entire responsibility for urine formation lies with the nephron. 2. Urine is 95% water by volume. 3. The act of emptying the bladder is called voiding. 4. Glomerular filtration is an ATP-driven process. 5. In the absence of hormones, the distal tubule and collecting ducts are relatively impermeable to water.
The major means of increasing heat production in response to a cold environmental temperature is
a. skin vasoconstriction b. wearing warm clothing c. increased muscle activity, such as through shivering and increased voluntary exercise d. formation of "goose bumps" e. increased food intake
The ________ is the thin meninx attached to the surface of the brain, containing many nerves and blood vessels.
A. subdural mater B. arachnoid mater C. pia mater D. dura mater
Rats are known as the genus and species ___________ ____________
Fill in the blank(s) with correct word