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rewona [7]
3 years ago
13

__________ lacks the capacity to remember a pathogen or react differently to it in the future, whereas __________ utilizes memor

y cells to adapt to a given pathogen and ward it off more easily in the future. Nonspecific resistance; adaptive immunity Adaptive immunity; specific immunity A natural killer cell; a cytoxic T cell Adaptive immunity; nonspecific resistance
Biology
1 answer:
Art [367]3 years ago
8 0

Answer:

Nonspecific resistance; adaptive immunity

Explanation:

The immune response against any antigen can be specific or non- specific. The specific immune response is provided by lymphocytes like B lymphocyte and T lymphocytes because after interaction with antigen they differentiate into memory cells which is saved in memory and when that antigen comes again in the body the memory cell easily ward it off. This type of immunity is called adaptive immunity.

In non-specific immunity, memory is not made after interaction and killing of the antigen or microbes by immune cells because the antigen is killed non specifically. Non-specific resistance is provided by phagocytic cells mainly.

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julsineya [31]
A decomposer eliminates waste from remains of organisms. An example is a fungus. If it were missing from an ecosystem, it would not allow for the "recycling" of organisms, and therefore there would be a buildup of animal and forest waste.
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3 years ago
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In a pea plant that is heterozygous for seed color what
asambeis [7]

Answer:

1/4.

Explanation:

The Mendel is known as father of genetics. He explained the concept of dominance, law of segregation and law of independent assortment while working on the pea plant.

The cross between the heterozygous seed color (Ss × Ss), result in the 3/4 dominant phenotype ( SS, Ss and Ss ) and 1/4 recessive phenotype with alleles ss.

Ss   ×   Ss

progeny obtained are SS, Ss, Ss and ss.

Thus, the correct answer is option (3).

3 0
3 years ago
¿Por qué el agua fría se queda abajo del agua caliente?
juin [17]

Answer:

Simple.

Explanation:

The water molecules that makes the cold water stay down separate and it always stay down and the hot water that goes up. The water molecules moves very fast and it goes up into the air or evaporation.  

4 0
3 years ago
In A Quiz Competition, You Are Asked A Question Where You Have To Choose The Statement Which Is/ Are Incorrect? (1 Point) [A]. S
lutik1710 [3]

Answer:

[D]. None of the above

Explanation:

Epithelium are one of the type of four tissues found in living systems. They possess a variety of functions and are found to line/cover the surfaces of most organs. Epithelial tissues are classified based on the number of cell layers (simple and stratified) and shape (squamous, columnar, and cuboidal).

Based on their shape;

- Squamous epithelium are made up of scale-like flat cells that line the surfaces of alveoli of the lungs etc. They are of thin, flat, irregular shaped cells which fit together like floor tiles to form a compact tissue as stated in this question.

- Cuboidal epithelium contains cells whose shape are similar to that of a cuboid i.e. close width and height. They are located in the kidney tubules, thyroid vesicles and in glands like pancreas.

- Columnar epithelium are relatively thin and elongated in shape, hence, they are found in organs and surfaces whose function mainly is absorption and secretion.

Hence, NONE of the mentioned statements are UNTRUE

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