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
Schach [20]
3 years ago
7

Each lung consists of millions of tiny air sacs called___. Each air sac is surrounded by a tiny blood vessel called a___.

Biology
1 answer:
gayaneshka [121]3 years ago
5 0
Each lung consists of millions of tiny air sacs called alveoli.

<span>Each air sac is surrounded by a tiny blood vessel called an </span>arteriole.
You might be interested in
1)Which of these is NOT a typical shape for a bacterial cell?
dalvyx [7]
1. is D all of the above are shapes of bateria  
>rod: vibro
>spiral: spirillum
>spherical: coccus 

2. is B prokaryotic cells such as bacteria tend to reproduce asexually via binary fission where the bacteria splits in half and becomes into two

hope that helps 

6 0
4 years ago
if the primary gear ratio in a drill is 4:1 and secondary gear ratio is also 4:1 what is the overall gear ratio of the drill
Radda [10]
I believe the answer would be 16:1
This can be looked at by assuming the motor speed is say 2000 RPM. Through the first reduction it is reduced 4 times to 500 RPM. The second reduction of 4:1 reduces it down to 125 RPM. The total reduction is the motor speed of 2000 RPM divided by the final speed of 125 or 16. A gear ratio is the ratio used to determine the angular speed and torque of a geared system. 
6 0
4 years ago
Read 2 more answers
Which of the following describes a role of gravity in the formation of our solar system? I. In the early stages of solar system
Luda [366]
The answer is B. The planets were all formed from dust that was orbiting around the sun.
7 0
4 years ago
In the debate on global warming what changes are listed as a result of burning fossil fuels? Select all that apply.
Deffense [45]

Answer:

D

Explanation:

When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. 

5 0
2 years ago
Read 2 more answers
_____ processing starts at the very basic level of sensory receptors and works toward more complex levels of processing.
nevsk [136]

<u>Bottom-up processing</u> starts at the very basic level of sensory receptors and works toward more complex levels of processing.

Explanation:

Bottom-up sensory processing, a sensory perception process, is the entry or basic level of analysis of the senses which begins with an incoming stimulus that is detected by the sensory receptors in sensory organs and then begins the complex processing of sensory perception.

This process is initiated with a sensory data from which sensory information is integrated in the brain.  

The sensory photoreceptors of the eye present in the retina capture light as the visual data. This data is then transducted to electrical impulses and transmitted to the visual cortex in the brain, where the information in the data is processed that provides the visual experience .

8 0
4 years ago
Other questions:
  • Unlike herbivores, carnivores
    8·2 answers
  • According to Arroyo, how can we better prepare and adapt to violent storms and floods?
    11·1 answer
  • A series of two-point crosses were carried out among seven loci (a, b, c, d, e, f, and g), producing the following recombination
    13·1 answer
  • Which condition is a benefical fir growth of cacao trees
    9·1 answer
  • What is the correct description of lactic acid fermentation
    8·2 answers
  • What specializations are common in the digestive tract of higher organisms such as humans?
    14·1 answer
  • Which of the following is not part of a chromosome?
    9·2 answers
  • I NEED THE ANSWER!!
    6·1 answer
  • Correct choice asap!!<br><br><br> bio
    10·2 answers
  • Which of the following best describes the significance of the sequence of an individual’s DNA
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!