Question 1

Use the following to answer questions :
Suppose a rodent species can either live alone or in groups.Group living affects the chances that the rodents will acquire parasites,susceptibility to predation,and also affects thermoregulation.Three different populations of marmots are affected by group living in different ways-the chart below shows the benefits (positive numbers)and costs (negative numbers)for each of these factors in the three populations where the benefits and the costs are in the same units for each of the factors. 
-If the thermoregulation effects were not a factor,in which populations would you expect to find group living?

Accepted Answer

The answer of Use the following to answer questions :
Suppose...

Question 2

Essential to defining biological societies is the existence of _______ in the group.

Accepted Answer

Cooperation is essential to defining biological societies as it involves individuals working together for mutual benefit, which is a fundamental aspect of social organization in biological groups.

Question 3

An animal is displaced such that the sun rises earlier and is lower in the sky than it would be at the animal's home position.In which direction will the animal move in order to go home?

Accepted Answer

This situation suggests that the animal has traveled eastward or crossed several time zones to an area further east than its home position. As a result, the sun rises earlier and appears lower in the sky than it would at the animal's home location. To return home, the animal needs to move westward, so the correct direction would be southwest.

Question 4

The behavior of homing pigeons provides an example of

Accepted Answer

Homing pigeons use multiple navigation mechanisms including visual, magnetic, and olfactory cues. This redundancy ensures accurate navigation even if one mechanism is disrupted.

Question 5

Biologists assume that animals that live in groups do so

Accepted Answer

Biologists believe that animals live in groups because the advantages of group living outweigh the disadvantages. While there may be some drawbacks to living in groups (such as increased competition for resources and greater risk of disease transmission), the benefits (such as increased protection from predators, efficient foraging, and enhanced reproductive success) are typically greater. Therefore, group living is considered to be adaptive for many species.

Question 6

Which of the following would provide the strongest evidence that pigeons use magnetic cues for orientation?

Accepted Answer

The attachment of small magnets disrupting pigeons' homing behavior directly suggests that magnetic cues are crucial for their orientation, providing strong evidence of their reliance on magnetic fields.

Question 7

A bird is trained to feed from the southeast end of a circular cage.At sunrise,a mirror is used to shift the position of the sun 45° to the right of its real position.At which location in the cage will the bird attempt to feed?

Accepted Answer

The answer of A bird is trained to feed from...

Question 8

A bee is performing a waggle dance on the vertical surface of the honeycomb.The dance has a long waggle segment that goes straight upward.What is she communicating to her hivemates?

Accepted Answer

The long waggle segment going straight upward indicates that the food source is far from the hive. Additionally, the orientation of the waggle dance in relation to the sun conveys the direction of the food source. If the dance is performed on the vertical surface of the honeycomb and goes upward while angled slightly to the right of vertical, the food source is in the direction of the sun. Therefore, the bee is communicating that the food is far from the hive and located in the direction of the sun, which is choice D.

Question 9

Experimental evidence suggests that the ability to detect _______ allows pigeons to home even on overcast days.

Accepted Answer

Pigeons have been shown to have magnetoreception, meaning they can detect the Earth's magnetic field. This ability likely helps them navigate over long distances even on overcast days when other cues such as the sun or landmarks may not be visible.

Question 10

An animal's movement is considered migration if

Accepted Answer

The definition of migration is the periodic movement of animals between locations.

Question 11

Use the following to answer questions :
Suppose a rodent species can either live alone or in groups.Group living affects the chances that the rodents will acquire parasites,susceptibility to predation,and also affects thermoregulation.Three different populations of marmots are affected by group living in different ways-the chart below shows the benefits (positive numbers)and costs (negative numbers)for each of these factors in the three populations where the benefits and the costs are in the same units for each of the factors. 
-In which populations would you expect to find group living?

Accepted Answer

The answer of Use the following to answer questions :
Suppose...

Question 12

Loggerhead sea turtles rely primarily on _______ as they navigate in the Atlantic Ocean.

Accepted Answer

Loggerhead sea turtles have been shown to rely on magnetic fields for navigation in the Atlantic Ocean. They are able to detect subtle variations in the Earth's magnetic field and use this information to navigate to specific locations.

Question 13

Path-integration navigation used by desert ants

Accepted Answer

Path-integration navigation used by desert ants involves estimating their position and direction of travel based on the distance and direction of their previous movements, similar to dead reckoning used by sailors in the past. This does not require extensive learning and rehearsal, retracing of their steps, use of a sun compass, or a waggle dance.

Question 14

At noon,a bee is performing a waggle dance that is oriented 90° to the right of vertical on the honeycomb.The waggle portion of the dance has a long duration.What is she communicating to her hivemates? (Assume the sun is north of the hive at noon. )

Accepted Answer

The bee's waggle dance oriented 90° to the right of vertical indicates the food source is east of the hive. The long duration of the waggle portion suggests the food is far from the hive.

Question 15

A bird is trained to seek food on the western side of a cage open to the sky.It is then placed in a chamber with a controlled light cycle so that its circadian rhythm becomes phase-delayed by 6 hours (i.e. ,its circadian rhythm is 6 hours behind real time).When it is returned to the open cage at noon in real time,where will it search for food?

Accepted Answer

The answer of A bird is trained to seek food...

Question 16

What part of the body does a bee waggle in a waggle dance?

Accepted Answer

In a waggle dance, a bee waggles its abdomen to communicate the direction and distance of a food source to other bees.

Question 17

A waggle dance is typically performed

Accepted Answer

The waggle dance is performed by honeybees inside the hive, often in the dark, to communicate the location of a food source to other bees.

Question 18

A bird is trained to feed from the south end of a circular cage.The bird is then placed in a light-controlled room and is phase-advanced by 6hours.If the bird is returned to the circular cage at noon,where will it search for food?

Accepted Answer

When the bird is phase-advanced by 6 hours, its internal clock advances by 6 hours as well. This means that its feeding behavior will also shift by 6 hours.

If the bird is returned to the cage at noon, it will still try to feed in the direction that corresponds to its internal time of 6:00 pm (which is 180 degrees away from noon). Therefore, the bird will search for food in the direction that is 90 degrees clockwise from south, which is east.

Question 19

Biologists studying navigation in pigeons discovered that that their experimental subjects were determining direction from the position of the sun by

Accepted Answer

Disrupting the pigeons' circadian clocks would affect their ability to use the sun's position for navigation, as their internal clocks help them determine the time of day and thus the sun's position relative to their location.

Question 20

Which tool has allowed scientists to determine that young loggerhead sea turtles from Florida spend time off the coast of Africa?

Accepted Answer

The answer of Which tool has allowed scientists to determine...

Quiz 40: Animal Behavior