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
In-s [12.5K]
3 years ago
7

3 features of gas exchange surfaces.

Biology
1 answer:
k0ka [10]3 years ago
6 0

Answer:

List the features of gas exchange surfaces in animals.

1)They are moist to prevent the cells from drying and to allow gases to dissolve;

2)They have a large surface area , so that a lot of gas can diffuse across at the same time;

3)They have a high concentration gradient - maintained by the movement of air & blood.

You might be interested in
Bullfrog tadpoles are often sold as fish bait, even in areas where they do not occur naturally. When people buy 10 of them and d
DanielleElmas [232]
B) Overharvesting of species from the world
6 0
4 years ago
Why is the sickness caused by trypanasomes called African sleeping sickness?
Shkiper50 [21]
African Trypanosomiasis or simply Trypanosomiasis, though it's common name is (African) sleeping sickness.
6 0
3 years ago
The steps of meiosis
irinina [24]
Phases of meiosis<span>. In many ways, </span>meiosis<span> is a lot like mitosis. ... Since cell division occurs twice during </span>meiosis<span>, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four </span>stages<span>: </span>prophase<span>, metaphase, anaphase, and telophase.</span>
4 0
3 years ago
Read 2 more answers
In an ecosystem, every food chain begins with organisms that can create organic molecules from inorganic molecules; most frequen
Alecsey [184]
If I am not wrong, I believe the answer is Producers. The reason as to why I say that producers is the answer is because in every food chain, there needs to be a base. That base is what provides the starting energy that will later on move up in the food chain.
8 0
4 years ago
If the child is blood type b, while the mother is blood type o.what blood type would exclude a male from being the father?
Zanzabum
Blood group b would exclude a male from being a father
8 0
4 years ago
Other questions:
  • The growth potential of healthy people was emphasized by
    10·1 answer
  • A person has entered a hunger strike. After 60 days of starvation, this person is on the edge of dying. What is likely to be the
    5·1 answer
  • Euglena, one of the most common flagellated protozoa, has a red despot which is important for ___. A. Detecting colors. B. Being
    15·2 answers
  • What type of protein speeds up the rate of a chemical reaction in a living thing?
    10·1 answer
  • Clouds form when water vapor moves into the atmosphere. What drives this process?
    13·1 answer
  • Which type of limiting factor does the seasonal drought in the serengeti plains affect
    15·1 answer
  • Branches are what part of the plant?​
    13·2 answers
  • Define the five systems. Be sure to include enough information to distinguish each system from the others.
    8·1 answer
  • What does the weak magratic field tell you about the internal structure of Venus?
    11·1 answer
  • Pls help i dont get it question is above ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!