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
galben [10]
3 years ago
13

Most insects have small holes in the exoskeleton called _____, which open and close to regulate air flow. a. bronchi b. alveoli

c spiracles d. trachea
Biology
1 answer:
GaryK [48]3 years ago
8 0
Most insects have small holes in the exoskeleton called spiracles, which open and close to regulate the air flow. The holes lead to the trachea. The correct answer is C, spiracles. 
You might be interested in
Darwin believed that organisms with traits that were best suited for the environment would
Luba_88 [7]
Pass these traits on to their offspring because it would be a dominant trait.
6 0
3 years ago
Read 2 more answers
Decide which examples are most likely to increase variation or decrease variation. Some examples could do both.
dimaraw [331]

Answer:

Toxins

New habitat

Increased food supply

Explanation:

I just answered this

3 0
4 years ago
Read 2 more answers
10. What is another name for the large intestine?
erma4kov [3.2K]

Answer:

I think it is colon because the other ones did not make sense

Hope you have a good day

4 0
3 years ago
Read 2 more answers
After a major environmental change, what happens to species that do not adapt or move?
SSSSS [86.1K]

They will most likely die. Due to the unfamiliarity of the environment and not being able to adapt.

6 0
4 years ago
Describe a specific example of a visual communication used by animals in response to an external stimulus. Explain how this type
Sonbull [250]
Let's say there is a mother wolf watching her young and she see's a predator coming her communication would be to howl for her pack and behavior change would become for supervising to defensive
3 0
3 years ago
Other questions:
  • HELP MEEEEEEE WORTH 31PTS PLSSSSSSSS OMFFFFFFFFFFFF
    9·2 answers
  • Which structures are parts of the central nervous system? Select all that apply.
    11·2 answers
  • Do you think it is acceptable for someone to release old chemicals into a stream? Explain your answer
    9·1 answer
  • Given that the cytoplasmic membrane has a fluid dynamic nature, with phospholipids and proteins able to move about within the bi
    13·1 answer
  • You are hiking through a bog in northern Maine and notice what appears to be moss growing on the tamarack trees. On closer inspe
    12·1 answer
  • Why are most systems in Why are most systems in the human body negative feedback systems? Negative feedback systems balance the
    14·1 answer
  • Which stable element is used to determine the age of volcano rock<br>​
    8·2 answers
  • What two things can you tell from each word of an air masses' name?
    13·1 answer
  • PLEASE HELP I WILL GIVE BRAINALIST
    9·1 answer
  • An organism's phenotype is best described as its ________.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!