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Mkey [24]
3 years ago
14

When an antigen attacks the body, it activates adaptive immunity. This adaptive immunity produces a strong response when it enco

unters the same antigen for the second time. Which feature of adaptive immunity is essential for this kind of response?
the ability to remember the antigen it encounters
the ability to distinguish between self and nonself antigens
the ability to produce nonspecific antibodies against the foreign antigen
the ability to secrete lysozymes against pathogenic antigens
Biology
2 answers:
Ilia_Sergeevich [38]3 years ago
5 0

Answer:

Option). the ability to remember the antigen it encounters

Explanation:

The adaptive or acquired immunity is a type of immunity, which develops by the exposure of pathogens during lifetime. Four features of adaptive immunity includes specificity, diversity, memory, and ability to differentiate between self and non-self.

Cells of adaptive immunity (B cells and T cells) are specific for pathogens. Once the antigens or their components are recognized by pathogens, these cells produce effector cells and memory cells.

These are the memory cells that remember the antigens and provide a rapid and more efficient response during subsequent encounters of those antigens.

Thus, the correct answer is first option.

Leona [35]3 years ago
4 0

Answer:

A.the ability to remember the antigen it encounters

Explanation:

PLATO

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Match the cell adhesion or junction with the appropriate choice. Drag the terms on the left to the appropriate blanks on the rig
pav-90 [236]

Answer:

The missing options are:

A) protein subunits associated with gap junctions.

B) a type of adhesive junction connecting an epithelial cell to the basal lamina.

C) collection of fibrous intracellular attachment proteins.

D) create a permeability barrier.

E) button-like points of strong adhesion between two cells.

F) hollow cylinders associated with gap junctions.

G) type of adherens junction connecting cells with the extracellular matrix.

H) intermediate filaments associated with plaques.

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments.

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms.

L) point of cytoplasmic contact between two cells.

M) anchors cytoskeleton of one cell with that of a neighboring cell.

Set of answers are:

A) protein subunits associated with gap junctions. <u>Conexin</u>

B) a type of adhesive junction connecting an epithelial cell to the basal lamina.<u> Hemidesmosome</u>

C) collection of fibrous intracellular attachment proteins.<u> Plaque</u>

D) create a permeability barrier. T<u>ight junctions</u>

E) button-like points of strong adhesion between two cells. D<u>esmosome</u>

F) hollow cylinders associated with gap junctions. <u>Connexons</u>

G) type of adherens junction connecting cells with the extracellular matrix. <u>focal adhesion</u>

H) intermediate filaments associated with plaques. <u>Tonofilaments</u>

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments. <u>Adherens junctions</u>

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms. C<u>ell junctions</u>

L) point of cytoplasmic contact between two cells. <u>Gap junction</u>

M) anchors cytoskeleton of one cell with that of a neighboring cell. <u>Adhesive junction</u>

<u />

Explanation:

<u>Connexin:</u> is a transmembrane protein that forms the gap junctions, they are also called gap junctions proteins.

<u>Hemidesmosome junctions:</u> these types of junctions are in the epidermis, specifically between the epithelial cells and the basal lamina of the epidermis.

<u>Plaque:</u> they are part of the adherens junctions, they are fibrous proteins that are attached to certain points of the extracellular matrix.

<u>Tight junctions</u><u>:</u> are junctions between two epithelia, they are very restrictive and do not allow the passage of soluble molecules creating a permeability barrier.

<u>Desmosomes</u>: are very strong cell to cell junctions on the lateral sides of plasma membranes. They are in tissues that are under mechanical stress, such as the cardiac muscle.

<u> Connexons:</u> is a pore made of six connexin proteins in a gap junction. Connexons are the ones that connect two cells in gap junctions.

<u>Focal adhesions:</u> They connect the extracellular matrix with the cell, regulatory signs and mechanical force is transmitted through them.

<u>Tonofilaments:</u> tonofilaments are the ones that are associated with a plaque in adherens junctions, they are in epithelial tissues.

<u>Adherens junctions:</u> are cell to cell junctions where the cytoplasmatic face is connected to the actin cytoskeleton. They appear as spots forming the plaque or as zonula adherens, which are actin bands around the cell.

<u>Cell junctions </u>are protein complexes that connect two cells that are next to each other or a cell with the extracellular matrix. They have a lot of functions, such as pas information from cell to cell, or the exterior, form a barrier, synchronize cells, etc.

<u>Gap junctions:</u> are connections between the cytoplasm of two cells, molecules and, ions pass directly from one cell to the other.

8 0
3 years ago
When an object is in motion, it possesses what type of energy?
posledela

When an object is in motion, it possesses kinetic energy.

Option b is the only correct answer

<h3>What is kinetic energy?</h3>

Kinetic energy is the energy a body has or possess due to its relative motion.

Some few examples of kinetic energy are as follows:

  • Running
  • Walking
  • Cycling
  • Car movement
  • Aeroplane flying

Learn more about kinetic energy:

brainly.com/question/8101588

8 0
2 years ago
Of the six kingdoms now recognized, A two are eukaryotes, and four are prokaryotes. B four are plants, and two are animals. C tw
vitfil [10]

Answer:

The answer to your question is: letter C. two are prokaryotes and four eukaryotes

Explanation:

A two are eukaryotes, and four are prokaryotes. This answer is wrong because animalia, plantae, fungi and protista are eukaryotes.

B four are plants, and two are animals. This answer is wrong because only one kingdom is plants (plantae).

C two are prokaryotes, and four are eukaryotes. This answer is right there are two prokaryotes (eubacteria and archaebacteria) and the others are eukaryotes.

D four are bacteria, and two are eukarya. This answer is wrong there are only 2 bacteria not 4.

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it'll get very dense and pull together with Gravity to eventually make a star.

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What differs Flood from Flash Flood then? Explain your answer concisely.
allsm [11]

Floods and flash flooding Now is the time to determine your area's flood risk. ... Flash floods have a rapid hydrological response in catchments with short lag times, ... Two different types of flood hazard assessment methods were tested: (i) a ... elongation ratio and roughness index can be used to explain the flash flood types.

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2 years ago
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