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
timurjin [86]
3 years ago
14

Estrogens from the vesicular follicle trigger an LH surge from the anterior pituitary. This is an example of: Estrogens from the

vesicular follicle trigger an LH surge from the anterior pituitary. This is an example of: negative feedback first tier of control positive feedback fourth tier of control
Biology
1 answer:
brilliants [131]3 years ago
7 0

Answer:

The correct answer is: positive feedback.

Explanation:

Positive and negative feedback are terms that are used to define the way a system is regulated by its products. For example, when the production of a certain substance <u>inhibits</u> its producer that is called <u>negative feedback</u>. On the other hand, when a substance <u>stimulates</u> its producer to keep secreting said substance, this is called <u>positive feedback</u>.

Estrogen is a hormone of great importance in the female reproductive cycle and is secreted by the follicle cells in response to the presence of FSH (follicle-stimulating hormone), released by the anterior pituitary when stimulated by the GnRH (gonadotropin-releasing hormone).

Estrogen appears at the beginning of the cycle to stimulate the development of the ovarian follicles, and the hormone levels continue to rise as the cycle advances. Up until the 14th day of the cycle, estrogen has a negative feedback on GnRH and FSH, but then it makes an abrupt change to now exert positive feedback on GnRH to stimulate the release of LH (luteinizing hormone), which will be responsible for ovulation.

You might be interested in
Based on Jill's observations, which conclusion could you draw?
Readme [11.4K]

Answer:

the warm water and abundant sunlight in the nertic zone limits the plankton population

7 0
3 years ago
Special cells in the body are responsible for gathering information about the body's environment. These cells are called recepto
wlad13 [49]

Answer:

A reflex action

Explanation:

7 0
3 years ago
Read 2 more answers
What results from the addition or deletion of nucleotides in any number except a multiple of 3?
eimsori [14]
Addition or deletion of nucleotides in any number besides 3 results in a "frame-shift mutation."
This is because every 3 nucleotides of DNA/mRNA exons codes for a single amino acid in the synthesis of a protein. This triplet codon theory means that if 3 nucleotides are added or deleted then an amino acid will be added or lost, but subsequent codons and amino acids will still be read correctly.
However, if any number of nucleotides other than 3 are added or removed, then the codons following the mutation will be out of "sync," in terms of the reading order.
Hence it is called a frame-shift mutation because it shift the reading frame when translating nucleic acids into proteins. Frame shifts will lead to the wrong amino acids being adding in the wrong order for the rest of the code after the mutation.
8 0
3 years ago
Crabtree effect on glycolysis
Afina-wow [57]

Answer: 'At high fructose concentrations, respiration is inhibited while glycolytic end products accumulate, a phenomenon known as the Crabtree effect. It is commonly believed that this effect is restricted to microbial and tumour cells with uniquely high glycolytic capacities (Sussman et al, 1980).

Explanation: Sorry I dont really know a lot

8 0
3 years ago
Incomplete or imperfect flowers indicate varieties of plant that cannot reproduce.
NemiM [27]

Answer:

false

Explanation:

5 0
3 years ago
Other questions:
  • Which of the following is the primary cause of the rapid rise in loss of biodiversity?
    6·2 answers
  • Help, can someone please check my answers for my three questions? I will fan and will also give a medal.
    11·2 answers
  • Which of following refers to the process that facilitates plant communities gradually changing over a period of time in order to
    10·1 answer
  • Explain why it is important to monitor ecosystems over long periods of time?
    13·1 answer
  • Why are mitochondria called the power house of the cell
    7·1 answer
  • Why do zoologists name the bones/muscles of frogs like those of a human?
    5·1 answer
  • What will happen to life on earth if the average annual temperature on earth continues to increase?
    12·2 answers
  • What creates the air pressure difference between the equator and the poles
    13·2 answers
  • Which of these is a renewable resource?
    13·1 answer
  • Choose some of these examples to create a system. Explain how the flow of matter and energy occurs in the system.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!