« previous next »

Author Question: Among songbirds, a "crystallized" song is one that A) is beyond the range of hum (Read 579 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
on: Oct 26, 2013
Among songbirds, a "crystallized" song is one that
A) is beyond the range of human hearing.
B) is perfected by juveniles.
C) extremely young chicks sing.
D) is a perfected species-specific song.
E) warns of predators.


Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: May 30, 2019
D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Coelacanth Genes Mapped, "Living Fossil" Evolved Slowly Coelacanth Genes Mapped, "Living Fossil" Evolved Slowly
Theodore Brookhart and Egmont C. Arens, "Streamliner" Meat Slicer, Model 410. Theodore Brookhart and Egmont C. Arens, "Streamliner" Meat Slicer, Model 410.
"Strawberry tongue" and circumoral pallor in scarlet fever. "Strawberry tongue" and circumoral pallor in scarlet fever.
Stages of Natural Fetal Birth "مراحل الولادة الطبيعية" Stages of Natural Fetal Birth "مراحل الولادة الطبيعية"
Pancreatic Hormones "هرمونات البنكرياس" Pancreatic Hormones "هرمونات البنكرياس"
Female Reproductive System "الجهاز التناسلي للأنثى" Female Reproductive System "الجهاز التناسلي للأنثى"
Video: Body plan of euglena Animation

For a complete list of videos, visit our video library