Exam 7: Animal Adaptations to the Environment

Liquid water is the sole source of water for terrestrial animals.

Describe and contrast the osmotic challenges faced by marine and freshwater animals.

________ is the ability to transmit heat.

The regulation of body temperature in an animal by internal metabolism is called

Which of the following is an incorrect match of animal nutrient and nutrient role?

For every ________ rise in temperature, the poikilothermic metabolic rate approximately doubles.

Detritivores

________ are less dense than seawater and are present in fish that lack swim bladders.

Countercurrent heat exchange is an adaptation for both conserving body heat in a cold environment and losing body heat in a hot environment.

The relationship between surface area and ________ imposes a critical constraint on animal form.

The seasonal cessation of activities accompanied by a reduction in metabolism in response to cold temperatures during winter is called

Aquatic organisms that have a lower salt concentration in their bodies than the surrounding water are considered ________.

The circadian rhythm of an animal is controlled by ________.

Melatonin is secreted by the pineal gland at greater levels during the day.

Which of the following is unique to some small mammals in order to increase heat production?

The 24-hour cycle of activities in animals is called a circannual rhythm.

________ amino acids are those that animals are unable to synthesize for themselves and thus, must be supplied by the diet.

Ruminants regurgitate food to further break food down into smaller pieces.

Seasonal changes in the behaviour of animals are usually stimulated by changing critical daylengths.

Which of the following is incorrect?