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
Roman55 [17]
2 years ago
12

can someone tell me how flatworms remove waste??? Is it through their tubule? What's a tubule.. im so confused

Biology
1 answer:
netineya [11]2 years ago
3 0

Answer:

Faltworms rely on difussion to transport oxygen and nutrients to their internal tissue and to get rid of carbon dioxide and other wastes from their body . Flateworms have no heart ,blood, blood vessels, grills , or other respiratory systems. Flatworms have flame cells. Flame cells are specialized cells that remove and purify excess water from the body.

You might be interested in
The respiratory center which determines the breathing rate is located in the
Alex_Xolod [135]
The Medulla Oblongota is what determines your breathing rate :)

Medulla Oblongata is your answer :)
Good luck!
4 0
3 years ago
8. In chickens, brown feathers are dominant over red feathers. Suppose we cross two heterozygous chickens.
devlian [24]

Answer:

Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.

Explanation:

Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.

The cross can be represented by a Punnett Square:

<u>Bb X Bb cross </u>

alleles     B    b

B             BB Bb  

b             Bb bb

Where the result is:

<u>Genotypes</u>:  

  • Bb, 50%
  • BB, 25%
  • bb, 25%

<u>Phenotypes</u>:

  • Brown feathers, 75%
  • Red feathers, 25%.

In this case, the probability of having brown or red feathers is 3:1.

3 0
3 years ago
What is used to indicate the flow of energy in a food chain or web?
Verizon [17]

Answer: The arrows in a food chain show the flow of energy

Explanation: Primary Consumers (eat producers) The arrows in a food chain show the flow of energy, from the sun or hydrothermal vent to a top predator. ... Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters).

4 0
3 years ago
Choose the correct answer from the list.
stich3 [128]

Answer:

1, Promoters

2.transcription bubbles

3. transcription

4. repressors

5. Primers

6. consensus sequences

Explanation:

.1.  DNA sequences that direct RNA polymerase to the initiation site are called _____Promoters _________.

2. RNA synthesis complexes containing DNA, RNA, and polymerase are called ___transcription bubbles___________.

3. RNA synthesis (tRNA, mRNA, and rRNA) in general is called _______transcription_______.

4. The expression of beta-galactosidase requires the induction of operons by removal of _repressors_____________.

5. Unlike DNA synthesis, RNA synthesis does not require ___primers___________.

6. ___consensus sequences___________ are deduced by comparing many related DNA sequences.

7 0
3 years ago
The written notation used to represent the elements a compound contains and the relative number of atoms of each element is call
Anni [7]
Sorry I want points
7 0
3 years ago
Other questions:
  • What are some biotic and abiotic factors of a grizzly bear?
    8·1 answer
  • Which structure is found only in plant cells and functions in the process of photosynthesis?
    8·2 answers
  • What is a change that improves a species chance of survival
    11·2 answers
  • What is a reproductive strategy?
    13·1 answer
  • Chlorine has seven electrons in its valence shell. It accepts an electron to complete its octet and become a chlorine ion. What
    5·1 answer
  • Please answer my question. I would mark it as a brainlist answer if it helps me.
    14·1 answer
  • Please help me !!
    12·1 answer
  • Plzzz help with the one with the membrane picture
    9·1 answer
  • Please help with my biology
    9·1 answer
  • An air mass takes on temperature and moisture characteristics of the land
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!