« previous next »

Author Question: Circannual rhythms in birds are influenced by A) periods of food availability. B (Read 436 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?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

A revised phylogenetic tree of flightless birds. A revised phylogenetic tree of flightless birds.
Food chains. Food chains.
Examples of heart rhythms: normal. Examples of heart rhythms: normal.
Food Sources of Fiber Adults need to consume about 21 to 38 grams of fiber daily Food Sources of Fiber Adults need to consume about 21 to 38 grams of fiber daily
Read Food Labels to Lower Saturated and Trans Fat Intake Read Food Labels to Lower Saturated and Trans Fat Intake
As the world’s population continues to grow, demands on limited resources for food production As the world’s population continues to grow, demands on limited resources for food production
Video: Non-specific disease resistance mechanisms & Skin's defense barriers

For a complete list of videos, visit our video library