Quiz 3

Which of the following is an accurate statement about the relationship between size and metabolic rate? -There is a negative relationship between standard metabolic rate and body mass in ectotherms. -Small animals like shrews don't need as much food per gram of body mass as large animals like elephants. -Large animals like elephants have a lower mass-specific metabolic rate than small animals like shrews. -Large animals like elephants need to eat a lot more than small animals like shrews because an elephant's mass-specific metabolic rate is higher than that of a shrew. -None of these statements are accurate.

Large animals like elephants have a lower mass-specific metabolic rate than small animals like shrews.

Which of the following is NOT a connective tissue? Tendon Blood Smooth muscle Ligament Bone

Smooth muscle

In which of the following are epithelial tissue type and location correctly matched? -Pseudostratified columnar, walls of blood vessels -Simple columnar, kidney tubules -Stratified squamous, surface of skin -Simple squamous, inside of mouth -Cuboidal, lining of gut

Stratified squamous, surface of skin

Which of the following is a benefit of being an endotherm? -The animal would not lose heat to the environment. -The animal's constant internal temperature would allow it to tolerate environments with extreme temperatures. -The animal would save energy by not regulating its internal temperature. -The animal's internal temperature would change as the external temperature changed. -The animal's daily food requirements would be independent of body size.

The animal's constant internal temperature would allow it to tolerate environments with extreme temperatures.

Panting in dogs and birds is a cooling mechanism that releases heat to the environment by _________________.

evaporation

The release of most hormones is controlled by signals from the ___________ to the _____________.

hypothalamus; anterior pituitary

A mammal that is hibernating is best described as a _________________________.

poikilothermic endotherm

Basal metabolic rate is best defined as _____________.

the amount of energy a resting endotherm uses in a given time interval

All peptide hormones are ________________ whereas all steroid hormones are ____________________.

the protein products of genes; derived from cholesterol

When bound to their receptors, most steroid hormones act as ____________________.

transcription factors in the cell nucleus