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
Monica [59]
3 years ago
7

Which of these conditions indicate positive feedback has occurred?

Biology
1 answer:
aleksklad [387]3 years ago
8 0

Answer;

A) Blood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases.

Explanation;

-With negative feedback, the output reduces the original effect of the stimulus. While in a positive feedback system, the output enhances the original stimulus.

-Negative feedback is the most commonly used feedback loop in the body. Negative feedback is used to negate or counteract a stimulus without completely eradicating it.

-One key difference between the two feedback is that positive feedback loops are used to eradicate a stimulus. Another key difference is that responses through positive feedback become more amplified over time. So once a stimulus activates a positive feedback loop it is not turned off until the stimulus is completely removed.

You might be interested in
Check all that apply. Check all that apply. Can not proofread using a 3'-to-5' exonuclease activity Can initiate strand synthesi
Elis [28]

You are not posting the statement of the question but, If you are asking about the properties shared by RNA polymerase and the DNA polymerase, the correct ones are:

They both depend on a DNA sequence template.

Catalyzes phosphodiester bond formation.

Polymerizes nucleotides in a 5'-to-3' direction.

5 0
3 years ago
The higher the proportion of loci that are "fixed" in a population, the lower are that population's
Zanzabum

The correct option is (D) Nucleotide variability and average heterozygosity

The higher the proportion of loci that are "fixed" in a population, the lower are that population's nucleotide variability and average heterozygosity.

<h3>What does it indicate when a gene in a population is fixed?</h3>
  • In population genetics, fixation is the transformation of a gene pool from one in which at least two alleles of a certain gene exist in a given population to one in which only one allele persists.
  • Any allele must eventually be lost entirely from the population or fixed (permanently established at 100% frequency in the population) in the absence of mutation or the heterozygote advantage.
  • Selection coefficients and random variations in allelic proportions determine whether a gene will ultimately be lost or fixed. Fixation may relate to a specific nucleotide location in the DNA chain or a gene in general (locus).

Learn more about the Nucleotide variability with the help of the given link:

brainly.com/question/9363472

#SPJ4

8 0
1 year ago
The law of conservation of energy states that
Ne4ueva [31]

Answer:

According to the law of conservation of energy, energy cannot be created or destroyed, although it can be changed from one form to another. KE + PE = constant.

Explanation:

hope this helps! mark me brailyest plzz:D

3 0
3 years ago
The Ebola virus enters a human through the openings in the body or through the skin itself. Once inside, the virus attaches to a
agasfer [191]
<h2>Answer: <u><em>How does the Ebola virus infect people?</em></u></h2>

<em><u>Ebola virus contains a type of genetic material called RNA, which is similar to DNA and contains the blueprint for assembling new virus particles.  Unlike animals and plants, which also use DNA as a repository of information, viruses are not technically alive because they are incapable of replicating without help.  In order to create new viruses, the virus must infiltrate a living cell, where it hijacks the host cell’s machinery to fulfill its own goals.  In order to get into the cell, Ebola must travel through the cell membrane, which is a barrier that protects the cell from its environment.  However, all cells need nutrients, which must have ways of entering the cell; the viruses hitch a ride into the cell via one of these established nutrient-uptake entryways.  Ebola virus takes advantage of a non-specific engulfing process called macropinocytosis, which allows the virus to be “eaten” by a wave-like motion of the cell membrane (Figure 1) [2].</u></em>

<em><u></u></em>

<em><u></u></em>

Explanation:

5 0
3 years ago
How many daughter cells are created at the end of meiosis 1?
posledela

Two daughter cells are created

7 0
2 years ago
Other questions:
  • A reference to the first node in a linked list is called the _____ reference.
    12·1 answer
  • Molecules cannot react chemically unless they are......
    12·1 answer
  • Which process is necessary for sexual reduction but not asexual reproduction.
    11·2 answers
  • A lack of objectivity and impartiality is called____
    6·1 answer
  • What is tissue rejection?
    5·1 answer
  • Mrs. Zerlinsky wrote a chemical equation on the board and asked her class what should be changed to make it correct. She wrote:
    15·2 answers
  • Discuss what conditions are necessary for thunderstorms to form, and what conditions are necessary for
    13·1 answer
  • Types of angiosperms
    13·1 answer
  • What do you predict would happen if hydrogen bonds formed between any two nitrogenous bases in DNA ?
    15·1 answer
  • What factors do the kingdoms protista, plantae, fungi, and animalia have in common?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!