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
zzz [600]
3 years ago
10

An over-response of the body to a specific substance is called

Biology
2 answers:
Valentin [98]3 years ago
7 0
It’s called death probably
omeli [17]3 years ago
3 0
An over-response of the body to a specific substance is called. Allergic Hypersensitivity. Aka allergic reaction
You might be interested in
Which is part of a specific immune response?
Minchanka [31]
I think the answer is A or D
6 0
3 years ago
Read 2 more answers
A genetically heterogeneous population of rice has a mean in the number of days to maturation of 30. Selection for decreased per
chubhunter [2.5K]

Answer:

h² = 0.6

Explanation:

Before answering the question, we need to know a few concepts.

<u>Artificial selection</u> is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.

Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.

<u>The selection differential, SD,</u> is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,  

SD = X₀ - Xs

<u>Heritability in the strict sense, h²</u>, is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.  

h² = R/SD

The <u>response to selection (R) </u>refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.  

R = h²SD  

R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),  

R = X₀ - X₁

-------------------------------------------------------------------------------------------------------------

Now that we know these concepts and how to calculate them, we can solve the proposed problem.

Available data:  

  • You are selecting rice´s decreased period of maturation.
  • The population of rice has a mean maturation time of 30 days → X₀
  • Parental selected average period to maturation is 25 days → Xs
  • F1 plants mature on average in 27 days → X₁
  • N arrow sense Heritability → h²

According to what we sow previously, we need to find out the value of h².

We know that h² = R/SD, so we need to get R and SD first.  

R = X₁ - X₀

R = 27 - 30

R = -3

SD = Xs -  X₀  

SD = 25 - 30

SD = -5

Knowing this, we can calculate h²

h² = R/SD

h² = -3/-5  

h² = 0.6

 

7 0
2 years ago
What would happen if cellular respiration does not happen?
DENIUS [597]

Answer:

a cell dies

Explanation:

4 0
3 years ago
Read 2 more answers
A woman is taking a hike and sees a rattlesnake appear on the path near her feet. She is startled and as a result, her heart rat
Mars2501 [29]

Answer:

it might be false

Explanation:

8 0
2 years ago
PLS HELP
victus00 [196]

I think your answer should be B. an organism. Hope this helps. =^-^=

6 0
2 years ago
Read 2 more answers
Other questions:
  • The economy of agrarian society is based on which of these activities
    7·1 answer
  • Help me on number 20 and I will think u
    5·1 answer
  • A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum and eventually used to buil
    7·1 answer
  • Kelly is concerned about the growth of her premature daughter quinn. at quinn's last pediatrician appointment, the doctor assure
    9·2 answers
  • The more diverse an ecosystem is - *
    14·1 answer
  • Describe the channels and ions that neurons use to generate an action potential. (include when channels open and close and which
    12·1 answer
  • Kinetic energy in a substance is defined as
    6·1 answer
  • The nervous system and the muscle system responds to stimuli to produce motion. The movements of
    11·1 answer
  • The blue cell in the cartoon would be classified as what type of cell?
    5·2 answers
  • A genetics student is studying a plant that seems to have two Mendelian traits, flower color (red is dominant, and yellow is rec
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!