na2neErikam5painez
na2neErikam5painez
21-12-2016
Biology
contestada
Why do birds have hallow bones?
Respuesta :
greenacres
greenacres
21-12-2016
The hollow
part of a
bird bone
isn't wasted space. In some
bones
, the
hollow
cavities contain extensions of the air sacs from the lungs. These air sacs help the
bird
to get the oxygen it needs to fly quickly and easily.
Answer Link
VER TODAS LAS RESPUESTAS ( 76+ )
Otras preguntas
Bianca planted seeds to grow zinnias, sunflowers, and marigolds. After several weeks, 18 out of 50 zinnia seeds, 12 out of 30 sunflower seeds, and 14 out of 40
The development of a new tool does not change society. True False
Aquatic mammals, such as seals and dolphins, are able to stay submerged in water for long periods of time because of the mammalian diving reflex. when submerged
How does agribusiness help people in the developing world? I. High-wage jobs II. Better food supply III. Support for traditional agricultural practices
What Enlightenment principle is Thomas Paine advancing in this excerpt?
The graph shows the number of copies a copier can make. What is the unit rate? A) 1 25 B) 5 C) 15 Eliminate D) 25
land once connecting asia and north america
explain why it is often milder in areas such as coastal Maryland while areas such as Kansas or Iowa have more extremes in temperature?
15 points and brainliest for CORRECT answer. Given: ABCD is a trapezoid, AD = 10, BC = 8, CK - altitude Area of ∆ACD = 30. Find: Are
write 2/5 and 3/6 as a pair of fractions with common denominators
