1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alik [6]
3 years ago
9

Why do birds have hallow bones?

Biology
1 answer:
kari74 [83]3 years ago
8 0
The hollow<span> part of a </span>bird bone<span> isn't wasted space. In some </span>bones<span>, the </span>hollow<span> cavities contain extensions of the air sacs from the lungs. These air sacs help the </span>bird<span> to get the oxygen it needs to fly quickly and easily.</span>
You might be interested in
Which antiinfective agent may lead to blindness if not used correctly by the client in prescribed amounts?
Ilia_Sergeevich [38]
<span>Chloroquine could lead to blindness if it is not used properly. This anti-infective can accumulate in the retina or optic nerves and lead to blindness if overused. This medicine is typically used as a way of combating malaria, but as shown, it can have side effects that are very negative.</span>
8 0
3 years ago
One of the more common mistakes in developing competency modeling is
galben [10]
<span>One of the more common mistakes in developing competency modeling is Simply making a list of positive attributes.

</span>A competency<span> framework defines the knowledge, skills, and attributes needed for people within an organization. </span>Positive attributes include honesty, happiness, respectfulness, discipline, and flexibility.


7 0
3 years ago
Why is limestone both chemical and organic sedimentary rock?
MissTica
Limestone is composed largely of the minerals calcite or aragonite. Some limestones do not consist of grains and are formed by the chemical precipitation of calcite or aragonite. This is how limestone can be classified as chemical.
5 0
3 years ago
The digestive system organ that passes waste to be excreted and reabsorbs water and minerals is the:
andrey2020 [161]
I want to say the liver and/or kidneys . . .
6 0
3 years ago
Are viruses heterotrophs or autotrophs?
Svetlanka [38]
They are neither, they do not have the mechanism to ingest or produce food. 
3 0
3 years ago
Other questions:
  • PLZZZZ help ME
    8·2 answers
  • The Davises were excited about their newborn twin boys and couldn't wait to take them to see Mr. Davis's father. Grandfather Dav
    12·1 answer
  • The atomic mass of an element whose atoms consist of seven protons, eight neutrons, and seven electrons is _____.
    5·2 answers
  • If spiders cann't chew how do they eat
    7·1 answer
  • Who discovered the structure of DNA?
    11·2 answers
  • Explain with examples of each, how both physical and chemical weathering, along with erosion, can change Earth's surface.
    15·1 answer
  • 1. Insects Have three pairs of legs or are the ______ arthropods.
    9·1 answer
  • Explain how activities in your personal life are controlled by (or are similar/analogous to) specific organ systems.
    8·1 answer
  • All you need is in the photo <br><br><br>ASAP​
    7·1 answer
  • Any gi*rl wants to sho*w their body can jo*in me*et qma-trap-vbh​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!