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
vladimir1956 [14]
3 years ago
10

1. Is the trachea considered an organ? 2. Are bones organs? 3. What are rigid organs?

Biology
2 answers:
Zigmanuir [339]3 years ago
6 0
1. Trachea itself is not considered a complete organ. It is a part of the breathing system and the only airway to the lungs.

2.Yes rigid organs.

3. Rigid organs constitute part of the endoskeleton of vertebrates.
UNO [17]3 years ago
3 0
1. If you only consider the Trachea, it is not considered a <em>complete </em>organ. It is part of the respiratory system and breathing system. Some groups consider it as an organ, however, most do not. The trachea is a part of an organ. Basically, the trachea itself is not an organ. 
2. Bones are considered a rigid organ. Not only bones are organs, but they <em>protect</em> other organs.
3. A rigid organ is an organ that supports and protect other organs in the body and provide a stable structure for the body. This would be bones. 

Hope I helped! (:
You might be interested in
What are the 3 Domains that all life belongs?
Ber [7]

Answer:

bacteria, archaea, eukaryota

4 0
3 years ago
Read 2 more answers
HELP ASAP!! WILL GIVE 13 POINTS TO THE FIRST PERSON WHO ANSWERS THIS! AND WILL MARK AS BRAINIEST
4vir4ik [10]

Answer:

1.   As the cell size increases, the ratio of surface area to volume DECREASES

2.   It depends on the unit of the ratio 6:1. If it is in cm−1, then it means that it is similar to a cell of size 1 cm^3,  which is normally too big to get materials from the surface .

3.  A Small cell has a large surface area/volume ratio and therefore can exchange molecules with it's external environment rapidly. So, Here cell with ratio 6:1 is smaller and have ability to better transportation across it's membrane as compared to other cell with ratio 3:1

 HOPE THIS HELPS!!!

3 0
3 years ago
What is a macromolecule? Identify the four types of biological macromolecules
insens350 [35]
A macromolecule is a large molecule containing many atoms. The four type are carbohydrates, lipids, proteins, and nucleus acids.
8 0
3 years ago
I need help, I don't understand this, so please try to explain?
Vinvika [58]

Answer:

Yeah, so basically the image is showing restriction enzymes. The job of restriction enzymes is mainly involved in research when scientists use them for cloning human genes. But that's besides the point...

Main thing you have to understand is that restriction enzymes cut at very specific places along DNA sequences. If you look at the restriction enzyme Rsa 1, you can notice that it cuts only between a thymine nucleotide base and an adenine nucleotide base. Next, if ya look at Sty 1 (be careful b/c W can represent adenine or thymine), it cuts only between two directly adjacent cytosine nucleotide bases!

SO.... if we go to Rsa 1, we can find the answers by dividing up the sequences between the pattern we saw in the gray box. It only cuts between adenine and thymine bases. Based on that, we can find the number of fragments created, and the segment lengths (basically just like how many nucleotide bases are in each strand). Hope ya found this helpful!

3 0
3 years ago
What should you do to prevent the discharge of untreated waste from a type i or type ii marine sanitation device (msd)?
lara31 [8.8K]
<h2>Answer:</h2>

To treat the discharge of untreated waste from a type i or type ii marine sanitation device the following steps should be taken into account;

The “Y” valve must be secured to prevent accidental illegal discharge. This can be done by placing a lock or non-reusable seal on the “Y” valve or by taking the handle off the “Y” valve. Only treated sewage from an approved MSD may be discharged directly overboard.


7 0
3 years ago
Read 2 more answers
Other questions:
  • Why is it more difficult to induce contraction of the arrector pili muscle in a warmer environment?\?
    13·1 answer
  • How does the large amount of DNA fit into the tiny nucleus within the microscopic cells
    8·2 answers
  • What can you conclude about fossil by looking at the layers of rock?
    5·2 answers
  • The flow of energy moves in a circle through a food chain. The energy moves from the grass to the grasshopper. Next, the transfe
    13·1 answer
  • Which is least likely to be a reservoir for fresh water? ocean atmosphere ice and snow aquifer
    13·2 answers
  • Riley lives near a polar zone, where it is cold. He visits his friend Thalia, who lives in a tropical zone, where it is warm all
    9·1 answer
  • BEST ANSWER GETS BRAINLYEST
    8·1 answer
  • In geotropism, plants grow toward _____.<br><br> A)gravity<br> B)sun<br> C)other plants<br> D)light
    9·2 answers
  • Pls help with the highlighted just send me a pic on safari or something.
    11·2 answers
  • True or false? A person suffering from HIV/AIDS is more likely to become infected with tuberculosis.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!