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
valina [46]
3 years ago
5

A blastocyst is a A blastocyst is a

Biology
2 answers:
kipiarov [429]3 years ago
8 0

Answer:

hollow ball of cells formed after a fertilized cell undergoes cell division

Explanation:

Blastocyte is the name given to a hollow structure, originating from cell divisions that occur after fertilization. It is an embryo 5 or 6 days old (in some cases 7 days) and composed of approximately 200 cells.

Compared to embryos with fewer days, this embryo has a more differentiated cellular structure, composed of a central cavity (blastocele cavity) and two cell types: the <u>trophoectoderm</u> cells (which later will develop and form the placenta) and the cells of the <u>internal</u> <u>mass</u> (which will form the fetus).

The blastocyst represents the stage of embryonic development prior to implantation in the womb.

Alex_Xolod [135]3 years ago
3 0
It is a hollow ball of cells formed after a fertilized cell undergoes cell division.
I'm a Biology major, hope I helped :)
You might be interested in
The outward manifestation of a disease, often influenced by both genes and the environment, is called the disease:
xeze [42]

Answer: C. phenotype.

Explanation:

The disease phenotype is an observable characteristic or trait of a disease. It is influenced by the genetic make up and the surrounding environment of the organism. The appearance of symptoms, biochemical and physiological development of the disease is associated with the traits inherited from parents and also under the influence of the environment.

4 0
2 years ago
How are mosses and horsetails similar to ferns
GuDViN [60]
All of those are similar to each other because they are all weeds, or in other words they are all different types of grasses.
3 0
2 years ago
Every rock has been every type of rock <br> true or false
7nadin3 [17]

Answer:

false

Explanation:

because not every rock has granite in it

7 0
3 years ago
. You have constructed four different libraries: a genomic library made fromDNA isolated from human brain tissue, a genomic libr
aksik [14]

Answer:

A) Brain genomic library and muscle genomic library.

B) Brain genomic library and muscle genomic library - overlap completely.

Human brain cDNA library, and a human muscle cDNA library and other library is partially overlap.

Explanation:

A) The genomic library contains the whole genome content of the organism whereas cDNA library contains the coding genome of the organisms. Brain genomic library and muscle genomic library will constitute the all the genomic sequences of brain and muscle.  The cDNA library is prepared from the mRNA and the coding regions are present in this library.

B) The overlapping in the genome library might occur due to the common sequences present in the genome. Brain genomic library and muscle genomic library might completely overlap with each other as they have more sequence common among each other. All the other library may be partially overlap with each other as they have some common DNA sequences and neither library can have unique sequences.

7 0
3 years ago
The diagram shows a process taking place between molecules X and Y that provides energy to cells.
IgorC [24]

Answer:

They are ATP and ADP. ....

7 0
2 years ago
Other questions:
  • According to the fossil record found in these sedimentary layers, what conclusion can be drawn about animal life in general?
    11·2 answers
  • How did Ichthyosaurus survive? Be specific.
    10·1 answer
  • Lichens and mosses are______<br>species.​
    9·2 answers
  • What is dna not copied in meiosis 2??
    12·1 answer
  • Need help on a quiz
    7·1 answer
  • Identify the effects of the vagus nerve on the following components of the digestive system Salivary glands Pyloric sphincter (g
    6·1 answer
  • Nervous System
    14·1 answer
  • QUESTION 1<br> Which of the following is a Neandertal trait?
    11·1 answer
  • How did Durkheim compare society to the human body?
    13·1 answer
  • Match the key terms to their corresponding definition!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!