« previous next »

Author Question: Circannual rhythms in birds are influenced by A) periods of food availability. B (Read 468 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Oct 27, 2013
Circannual rhythms in birds are influenced by
A) periods of food availability.
B) reproductive readiness.
C) periods of daylight and darkness.
D) magnetic fields.
E) lunar cycles.


Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: Jul 27, 2019
C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Estimating cicada population size and predation rates by birds. Estimating cicada population size and predation rates by birds.
Periods of Purple Crying Periods of Purple Crying
The smell, sight, and taste of food, such as freshly baked bread, triggers the release of saliva The smell, sight, and taste of food, such as freshly baked bread, triggers the release of saliva
Eating a variety of foods from all food groups is the best strategy to meet your daily mineral needs Eating a variety of foods from all food groups is the best strategy to meet your daily mineral needs
People in poor, urban areas often find themselves in “food deserts" People in poor, urban areas often find themselves in “food deserts"
Basic Chart of Food Chain Basic Chart of Food Chain
Video: Digestive chemicals - water, gastric acid, bile & bicarbonate

For a complete list of videos, visit our video library