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1

An animal that primarily gains heat from its surroundings is called a(n) _____________.
A)ectotherm
B)endotherm
C)thermoregulator
D)warm-blooded animal
2

True or false. Endotherms use up to 80% of the energy from food to maintain body temperature.
A)True
B)False
3

True or false. Animals cannot regulate body temperature through behavior.
A)True
B)False
4

Shivering is a form of ____________.
A)radiating
B)thermogenesis
C)osmoregulation
D)None of these is correct.
5

True or false. One common strategy for lowering body temperature in animals is evaporative cooling.
A)True
B)False
6

The flushed face of a human exercising vigorously is due to an adaptation called the ____________.
A)rete mirabile
B)evaporative cooling mechanism
C)nonshivering thermogenesis mechanism
D)cranial radiator
7

Control of water and ion balance in an organism is called _____________.
A)thermoregulation
B)osmoconforming
C)osmoregulation
D)None of these is correct.
8

True or false. Osmoconformers spend little energy maintaining fluid composition.
A)True
B)False
9

As the body breaks down amino acids it produces nitrogenous wastes. Which of the following is not a nitrogenous waste?
A)ammonia
B)carbonic acid
C)uric acid
D)urea
10

Planarians have a simple nephridia system called a __________ cell system.
A)amino
B)water
C)flame
D)flood
11

True or false. Insects have excretory structures called nephridia.
A)True
B)False
12

The tube that connects the kidney to the urinary bladder in humans is the ____________.
A)portal duct
B)hepatic duct
C)urethra
D)ureter
13

The human body’s entire blood supply moves through the kidney every ___________ minutes.
A)30
B)5
C)75
D)90
14

True or false. Blood is carried to the nephron in the efferent arteriole.
A)True
B)False
15

Within the nephron, blood is filtered into the ______________ where it becomes glomerular filtrate.
A)glomerular capsule
B)glomerulus
C)peritubular capillary
D)renal pelvis
16

The final section of the renal tubule empties into the ___________.
A)distal convoluted tubule
B)renal pelvis
C)glomerulus
D)None of these is correct.
17

The loop of the nephron dips into the renal __________.
A)cortex
B)medulla
C)pelvis
D)tubule
18

The hormone responsible for reabsorption of sodium back into the bloodstream is _____________.
A)testosterone
B)antidiuretic hormone
C)epinephrine
D)aldosterone
19

True or false. Antidiuretic hormone (ADH) is responsible for reabsorption of water in the kidney.
A)True
B)False





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