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
tresset_1 [31]
4 years ago
10

Flatworms have no need for circulatory and respiratory systems because

Biology
1 answer:
Oxana [17]4 years ago
6 0
Flatworms have no need for circulatory and respiratory systems because they are able to actively diffuse oxygen through their skin and their body layout is such that they do not need to transport oxygen in order for it to get to their cells.
You might be interested in
What is a disadvantage of using DNA technology
stellarik [79]
Gene transfer to nontarget species
6 0
3 years ago
Read 2 more answers
1) Students in a science class created Eco columns to mimic a small ecosystem. Grass seeds were planted in 50 grams of potting s
bazaltina [42]

B) The grass height was the dependent variable.

E) Intermediate numbers of insects had the greatest positive impact on grass growth.

<h3>How insects affect the plant growth?</h3>

The grass height was the dependent variable because it depends on the nitrogenous waste of insects and presence of water. The numbers of insects had the greatest positive impact on grass growth because they provides nutrients to plant in the form of nitrogenous water so we can conclude that option B and E are the correct options.

Learn more about data here: brainly.com/question/19243813

7 0
3 years ago
Read 2 more answers
Which two of these characteristics are examples of endoskeletons?
mars1129 [50]
The answer is bones in mammals
8 0
3 years ago
Read 2 more answers
el clorato de potasio, KCLO3, se obtiene por la accion del cloro sobre la disolucion de hidroxido de potasio KOH en caliente, se
Wewaii [24]

Answer:

Esto es completamente cierto.

5 0
3 years ago
Colored Bodies present in the cytoplasm of the cell . <br> Give two examples
iogann1982 [59]

Answer:

Plastids

Explanation:

They are scattered of cytoplasm of the leaf cells.they are of many colours

3 0
4 years ago
Other questions:
  • What is a retrovirus?
    10·1 answer
  • What is the copulation​
    11·1 answer
  • What are the benefits and drawbacks of artificial insermination, versus natural service?
    6·1 answer
  • Number the following steps in the correct order and tell which stage it occurs in:
    12·1 answer
  • What is a vascular plant?
    8·2 answers
  • Network of fibers that holds a cell together, helps the cell keep shape, &amp; aids in movement.
    10·2 answers
  • Which fossil fuel creates the greatest amount of air pollution? A. Natural. B. Gas c. Methane. D. Oil. E. Coal
    14·2 answers
  • describe how a non-resistant Staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin
    14·1 answer
  • ________is a gas that dissolve in it
    13·1 answer
  • A student would like to determine how heating a liquid changes its volume. The student hypothesizes that the liquid will increas
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!