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
scZoUnD [109]
3 years ago
8

All animals have a system for exchanging carbon dioxide and oxygen with their surroundings. What do all of these systems have in

common?
A. All involve the active transport of gases across membranes.
B. All include airways, such as the trachea, that carry air to the mouth.
C. All involve gas diffusion across moist, selectively permeable membranes.
D. All involve organs or tissues that are dedicated to gas exchange and fulfill no other functions.
Biology
1 answer:
pantera1 [17]3 years ago
8 0

Answer:

A.All involve the active transport of gases across membrane

You might be interested in
Use the drop-down menus to complete each sentence.
kupik [55]

Answer:

the first one is preditation, the other one is competition, the last one is cooperation. :)

Explanation:

6 0
3 years ago
Read 2 more answers
About 99% of the solid Earth is made up of
scZoUnD [109]

Answer:

I think it is ddddddddddd

4 0
3 years ago
Read 2 more answers
Discuss the impact of one natural disaster on society and environment. ​
pav-90 [236]

One natural disaster has the ability to wipe out large crops and buildings that were used to fuel Earth's economy. It can also lead to a lack of biodiversity of an area that experienced the disaster.

For example, a tsunami can destroy buildings and kill an abundance of wildlife.

I hope I helped!

8 0
3 years ago
The pigment molecules responsible for photosynthesis are located in the
chubhunter [2.5K]
Answer D) : from testing the starch by iodine
7 0
2 years ago
3. The allele for round seeds is represented by R.
lutik1710 [3]

Answer:

rr

Explanation:

Alleles that are recessive will be lower case. Alleles that are dominant are upper case. Since we have two recessive alleles represented by 'R', the alleles would be written as 'rr'.

5 0
2 years ago
Other questions:
  • How do stem cells maintain their populations within tissues?
    15·1 answer
  • A parking lot paved with asphalt is abandoned describe the parking lot 5 years after it's abandoned
    8·1 answer
  • How many alleles are there for the four main types of human blood?<br> Please answer fast
    6·1 answer
  • An injury to the olecranon would most likely cause pain and disuse of which joint?
    13·2 answers
  • Which of the following represents a possible chromosome number of a species that uses sexual reproduction, and why?
    9·1 answer
  • If DNA replication continues as illustrated, which statement MOST accurately describes the expected results? A) One strand of re
    8·2 answers
  • The place where an oraganism lives and that provides the things it needs to survive is its
    12·1 answer
  • Which term is associated with asexual reproduction but not sexual reproduction
    14·2 answers
  • Energy from food must be transformed into the bonds of
    5·1 answer
  • 8)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!