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
kumpel [21]
3 years ago
12

What types of specialized cells and tissues do flatworms have in their excretory and

Biology
1 answer:
erastova [34]3 years ago
3 0

Answer:

Explanation:

The flatworms are acoelomate organisms that include many free-living and parasitic forms. Most of the flatworms are classified in the superphylum Lophotrochozoa, which also includes the mollusks and annelids. The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora. The Catenulida, or “chain worms” is a small clade of just over 100 species. These worms typically reproduce asexually by budding. However, the offspring do not fully detach from the parents and therefore resemble a chain in appearance. All of the remaining flatworms discussed here are part of the Rhabditophora. Many flatworms are parasitic, including important parasites of humans. Flatworms have three embryonic tissue layers that give rise to surfaces that cover tissues (from ectoderm), internal tissues (from mesoderm), and line the digestive system (from endoderm). The epidermal tissue is a single layer cells or a layer of fused cells (syncytium) that covers a layer of circular muscle above a layer of longitudinal muscle. The mesodermal tissues include mesenchymal cells that contain collagen and support secretory cells that secrete mucus and other materials at the surface. The flatworms are acoelomates, so their bodies are solid between the outer surface and the cavity of the digestive system.

You might be interested in
The alternation of generations life cycle alternates between haploid and diploid stages. Describe the structures and processes t
svlad2 [7]

Answer:

Alternation of generations (also known as metagenesis) this type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that will have distinct haploid sexual and diploid asexual stages. A multicellular haploid gametophyte with n chromosomes alternates with a multicellular diploid sporophyte with 2n chromosomes is form in these group, made up of n pairs.

A mature sporophyte will produces haploid spores by meiosis, a process which reduces the number of chromosomes to half, from 2n to n.

In the haploid cell the spores germinate and grow into a haploid gametophyte. At maturity, the gametophyte produces gametes by mitosis, which does not alter the number of chromosomes.

5 0
3 years ago
Which fossil fuel is used to produce gasoline, jet fuel, diesel and plastics? it’s oil right?
V125BC [204]

Answer:

Crude Oil/Petroleum

Explanation:

Crude oil is a very versatile fuel and is used to produce things like plastics, artificial food flavorings, heating oil, petrol, diesel, jet fuel, and propane.

7 0
3 years ago
Read 2 more answers
Regarding attitudes toward birth control, using birth control on a regular basis to avoid an undesired pregnancy demonstrates th
Leto [7]

Answer:

Behavioural

Explanation:

There are three components of behaviour that makes us act and think in a way that allows us to run our lives the way we feel comfortable and these are

  1. Behavioural
  2. Cognitive and
  3. Affective

In terms of Behavior, this component is the one that drives the way a person will behave towards a certain thing. In this case, an undesired pregnancy. This will be for the benefit of the person in long or short term and will provoke them in a way to take precautionary measures.

6 0
3 years ago
Read 2 more answers
Which of these is a disadvantage of using renewable resources, such as wind energy and sunlight, instead of using renewable reso
AlladinOne [14]
I'm pretty sure the answer is <span>B) Renewable resources can be impacted by weather.
Another disadvantage is that it can be pricey, but please tell me if it's right. :3</span>
5 0
3 years ago
Read 2 more answers
If one strand of dna is cggtac, then the corresponding strand would be
Vilka [71]
It would turn into GCCATG
8 0
3 years ago
Other questions:
  • What type of reproduction shuffles the genes
    5·2 answers
  • The organic chemicals that help cell membranes to conserve internal fluids are____.
    11·1 answer
  • A plant can open or close its stomata in response to environmental conditions. Which best explains how the ability to open and c
    12·1 answer
  • PLZ HELPPPPPPP!!!!!!!
    9·1 answer
  • Which of the following best describes a carbohydrate?
    14·2 answers
  • A tide table shows the date, time, and height of the predicted tides. What type of tide is the following table representing, sem
    5·1 answer
  • How has the manufacture of medicines been improved biotechnology
    14·1 answer
  • Animals adapted for surviving waves, as well as sudden changes in water level and temperature, would be found in the
    15·2 answers
  • Mira is testing objects for her science experiment. She has a chart listing the mystery objects' densities, but no other informa
    11·1 answer
  • If a hom.ozygous white horse <img src="https://tex.z-dn.net/?f=C%5EWC%5EW" id="TexFormula1" title="C^WC^W" alt="C^WC^W" align="a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!