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
Anna11 [10]
2 years ago
15

Which of the following body systems do both roundworms and flatworms lack?

Biology
2 answers:
lesantik [10]2 years ago
8 0
I think the answer may be D. But don’t answer yet, I may be wrong.
andrew11 [14]2 years ago
4 0

Answer:

the correct answer is option A.

Explanation:

Roundworms and flatworms cells are close to the animal's outer surface which help them absorbtion. Both roundworm and flatworm use diffusion to respire and for circulation of substances around their body.

They lack circular muscles so only way to undulate is from side to side. They does not need to circulate oxygen they simply diffuse it from skin.

Thus, the correct answer is option A.

You might be interested in
Identify the phase of mitosis for each plant cell diagram shown below.
madreJ [45]

Answer:

1. Metaphase

2. Prophase

3. Telophase

4, 5, 6, 8. Interphase

7. Anaphase

Explanation:

Mitosis is a cell division involving the formation of two genetically daughter cells. The process of mitosis involves stages including: interphase, prophase, metaphase, anaphase and telophase.

Interphase is the resting stage of the cell. It is th stage where the cell prepares for the division. Numbers 4, 5, 6, and 8 in the image are stages of interphase.

Prophase is the stage where the chromosomes become visible and arrange in pairs. Number 2 in the image depicts a plant cell in prophase stage.

Metaphase is the stage where the chromosomes align at the equator/middle of the cell. This alignment orients the chromosomes for separation. Image 1 depicts this metaphase stage.

Anaphase stage is the stage where the chromosomes separate into opposite poles of the cell. Image 7 depicts the anaphase stage of this plant cell.

In the Telophase stage, the cell plate forms to divide the plant cell into two. This is shown in image 3.

6 0
2 years ago
Which of the following is true regarding scientific theories,laws, and knowledge?
stepladder [879]
I would say d I’m probably wrong , I hope this helps (:
5 0
3 years ago
Read 2 more answers
If tall eyeballs (T) are dominant to short eyeballs (t), give the genotype(s) for Mr. Krabs family members who have short eyebal
frozen [14]

Answer:

c is the answer i belive..

7 0
2 years ago
If a rock disintegrates by chemical weathering into small grains of similar composition, would this be considered reproduction?
hammer [34]
Not really. The similar composition is still different from the chemical weathering, making it not really a reproduction
3 0
3 years ago
Read 2 more answers
A teacher has two cubes of sugar that are both the same size and shape. He adds cube A to a beaker filled with 100 mL of water,
bazaltina [42]

Answer:

Burning sugar results in a chemical reaction

Explanation:

Flammability, odor, and density are just a few examples of characteristic properties of a substance. A chemical reaction occurs when molecules interact with one another and the molecules change. For example burning sugar results in a chemical reaction because the properties of cube B changed when it was burned. This change in solubility shows that cube B must be a different substance than cube A because of the chemical reaction that occurred when cube B was burned.

3 0
3 years ago
Other questions:
  • How genetic variations in a population increase some individual’s probability of surviving and reproducing in a specific environ
    6·1 answer
  • Which of the following would produce a new substance?
    14·2 answers
  • WILL GIVE BRAINLIEST AND POINTSSSSS
    8·2 answers
  • What means opposite charges of a magnet are brought together
    10·1 answer
  • Ted runs from the biology laboratory straight to his therapist's office. He is sweating and fear is etched on his face. He asks
    13·1 answer
  • Why are enzymes necessary?
    14·2 answers
  • Why are invasive species problem for the ecosystem
    14·1 answer
  • En que se diferencia el transporte en masa del transporte mediado por bombas​
    12·1 answer
  • Need help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Still have more work to do please help!!!!!!!!
    13·2 answers
  • Help pls!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!