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
krok68 [10]
2 years ago
15

Which of these statements about trophoblast is false?

Biology
1 answer:
lukranit [14]2 years ago
7 0

Answer:

The statement C that says ''is derived from the inner cell mass'' is false.

Explanation:

The trophoblast is a structure composed of a set of cells (cytotrophoblast and syncytiotrophoblast), which are shaping the outer layer surrounding a blastocyst, during the earliest stages of embryonic development that mammals pass.

The trophoblast provides nutritive molecules to the developing embryo and facilitates its implantation to the uterine wall due to its ability to erode the tissues of the uterus, that is, it is responsible for making it possible for the embryo to be implanted in the uterine endometrium. Thus, the blast can join the cavity formed by the uterine wall, where it will absorb nutrients from the fluid from the mother.

During the third week, embryonic development includes the development of the trophoblast. At the beginning, the primary villi are formed by the internal cytotrophoblast which is surrounded by the outer layer of syncytiotrophoblast. Then, the cells found in the embryonic mesoderm are directed to the primary villous in the third week of gestation and when it ends, the mesodermal cells begin to be singled out to form blood vessel cells.

You might be interested in
What main idea about the nature of the cell did historical scientists disagree on?
VLD [36.1K]

Explanation:

Scientists didnt belive that there are cells untill robert hooke (1665). He observed the cells in a cork slice with the help of a PRIMITIVE microscope

Leeuwenhoek (1674), with the help of an improved microscope, discovered free living cells in pound water for the first time.

It was robert brown in (1831) who discovered the nucleus in the cell.

Purkinjie in 1839 coined the term 'protoplasm' for the fluid substance of the cell.

THE CELL THEORY, that all plants and animals are composed of cells and that the cell is the basic unit of life, was presented by two biologists, schleiden (1838) and schwann(1839). The cell theory was fuether expanded by virchow (1855) by suggesting that all cells aris form PRE-EXISTING cells. With the discovery of the electron microscope in 1940,it was possible to observe and understand the complex structure of the cell and its various organelles.

Well, thats the history of the discovery of cells.

7 0
2 years ago
What structure attaches muscle to bone​
nadezda [96]

Answer:

tendons

Explanation:

5 0
3 years ago
When you take antibiotics to treat bacterial infections, you often develop diarrhea and secondary infections as a consequence of
Degger [83]

Answer:

Why antibiotic-associated diarrhea occurs isn't completely understood. It's commonly thought to develop when antibacterial medications (antibiotics) upset the balance of good and bad bacteria in your gastrointestinal tract.

Explanation:

5 0
2 years ago
Carbon transferring from a body of water to the atmosphere is called
AveGali [126]
Diffusion , the movement of gas molecules . 
3 0
3 years ago
Read 2 more answers
Identify the lysogenic virus:<br> A. Measles <br> B. Chicken pox<br> C. Small pox <br> D. Flu
shtirl [24]

Answer:d

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Bacteria can be classified by shape. For the following bacteria species, give their basic bacterial shape.
    13·1 answer
  • Two methods of active wiretapping are “between lines transmission” and “____.”
    6·1 answer
  • Which of Mendel's generations was allowed to self-pollinate
    11·1 answer
  • A protein is made and inserted into the membrane of the rough endoplasmic reticulum. A binding site that is present in this prot
    8·1 answer
  • Which of the following is not one of the reasons to properly warm up before exercising?
    7·2 answers
  • Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. How
    10·1 answer
  • Option :<br> Bacteriacial cell <br> Plant cell <br> Animal cell <br> All of these are correct answer
    10·1 answer
  • What is this organelle
    11·1 answer
  • How is the Greenpeace organization monitoring the situation with ozone?
    9·1 answer
  • A client with acute renal failure progresses through four phases. which describes the onset phase?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!