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vodka [1.7K]
3 years ago
15

Which plane of reference would always divide a four-legged animal into two equal halves that are mirror

Biology
1 answer:
tigry1 [53]3 years ago
5 0
A. Frontal......hope this helps
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What is the goal of a conclusion?
kirill [66]

The goal of a conclusion is to state whether the hypothesis was supported by the data

Explanation:

A conclusion is a type of small paragraph where we explain the overall outcome of an experimental procedure and after it mention the proposed hypothesis at the starting of the experiment was correct or not.

These discussions which is mentioned in the conclusion is helpful for further experiments or also test that could be done to support your findings in the present experiment. This part could also be called perspectives.

4 0
3 years ago
Elijah, a 17-year-old high school junior, is an integral part of the school soccer team. He is a good vocal artist and is part o
Svetradugi [14.3K]

Answer: Identity moratorium

Explanation:

Identity moratorium is the third identity status in Marcias theory. This identity represents a high exploration of different things or skill but low commitment to all of them. This is stage of identity crisis in youth. They have tried out different things but are not yet certain of a career type.

6 0
3 years ago
Can anyone help giving 5 stars
anyanavicka [17]
The answer is the function of living things are composed of cells
4 0
2 years ago
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Which of the following statements about entropy is true?
umka21 [38]

The correct answer is:

<h3>a. Entropy increases going from one trophic level to another.</h3><h3>Explanation:</h3>

Entropy progress going from one trophic level to another. Entropy is a division for the disorderliness of a system. As the trophic level move to the other, energy is lost so more chaos occurs which inflates the entropy.

6 0
3 years ago
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Explain the interaction that occurs between a t-helper lymphocyte and a b cell when the b cell is being induced to produce peanu
Paraphin [41]

Answer:

           According to Dr. Ray Schiling (member of the American Academy of Anti-aging medicine) about 1.5 million people suffer from peanut allergies. The seeds of peanut (<em>Arachis hypogea</em>) contain an array of allergens that can induce the production of IgE specific antibodies predisposed individuals. Ara1 and Ara2 are most common seed storage protein that cause allergy. Other allergen proteins such as Ara3 to Ara 17 have also been identified that cause allergy.  


Entry of peanut allergen into body

When peanut allergens enter the body of an individuals it leads to development of different symptoms like itchy skin, tingling sensation, nausea, runny nose and anaphylaxis.  

Allergic response

There are two subsets of T-cells Th1 and Th2. Both invoke different response to allergens. Th1 direct a non-allergic response while Th2 direct allergic response ranging from releasing of histamine to anaphylactic response. The presence of IL-12 cytokines direct a Th1 based, nonspecific response.  


Mechanism of allergic response (interaction between helper T cell and B cell)

Step 1.  

           When allergen enter to body they are encountered by B cells. Immunoglobulin receptors on the surface of B cells recognize antigen (Peanut allergens) and get attached, which are then internalized and processed. Within B cells the fragments of antigens combine with HLA class 2 proteins.  

Step 2

             HLA class 2 with antigen fragments (peanut allergens) then display on the surface of B cells.

Step 3

            Receptors on the surface of helper T cells recognizes the complex of HLA class 2 and antigen fragments (peanut allergen) and is activated to produce cytokines, which activate the B cells.  

Step 4

             B cell is activated by cytokines and begins clonal expansion. Some of the progeny become anti-body producing plasma cells while other become memory B cells.  


7 0
3 years ago
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