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nordsb [41]
4 years ago
9

Innate immunity

Biology
1 answer:
krek1111 [17]4 years ago
8 0

Answer:

3. is activated immediately upon infection.

Explanation:

Innate immunity is the nonspecific immunity. These immune defenses are present at birth and do not involve specific recognition of a microbe. Being nonspecific in nature, it acts against all microbes.  Innate immunity includes the first and second lines of defense.

Some of the examples of components of innate immunity among the first line of defenses are physical and chemical barriers of the skin and mucous membranes. Innate immune responses are the immunity’s early warning system that is generated immediately after the encounter with a pathogen to prevent them from entering the body and to help eliminate the ones that have entered the body.

Once a microbe has entered the body, secretion of antimicrobial substances and activities of natural killer cells, phagocytes, the process of inflammation, etc. serve to eliminate it from the body. All these responses are the components of innate immunity.

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An endothermic reaction is a process
bagirrra123 [75]

Answer:

If the system is the reactants/products, the temperature would increase.

If the system is the surroundings in which the reaction is occuring, the temperature would decrease.

Explanation:

If I helped, a brainliest answer would be greatly appreciated!

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PLEASEE HELPP MEE !!!!!
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Producer would be missing vital nutrients

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4 years ago
In the 1950s, when Watson and Crick were working on their model of DNA, which concepts were well accepted by the scientific comm
bogdanovich [222]

Answer:

The correct answer will be-

1. Chromosomes are made up of protein and nucleic acid.

2. Genes are located on chromosomes.

3. Chromosomes are found in the nucleus.

Explanation:

Watson and Crick are known for their findings on the structure of DNA in 1953. Their findings were motivated by the book called "What is Life?".

The book stated the concepts which were well accepted by the scientific communities that is the gene determines the trait which is located on the chromosomes proved by the experiments of Morgan.  

The chromosomes are the condensed structure present in the nucleus was suggested by the Nageli in 1884. The chromosomes are composed of nucleic acid and protein was also proved and was well-accepted fact.

But the genes are made up of DNA was not well accepted which was suggested by the experiments of Avery in 1940s.

Thus, the selected options are the correct answer.

5 0
4 years ago
hi. i’m helping my cousin with homework and teaching her how to use this app. put these countries from largest to smallest; chin
exis [7]

Answer:

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Explanation:

4 0
4 years ago
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The cytoskeleton is an organelle that consists primarily of proteins. Group of answer choices True False
kotykmax [81]

Answer:

True

Explanation:

The cytoskeleton is a non-membranous organelle. It is a dense network of protein fibers. The main function of the cytoskeleton is to impart cells mechanical strength, shape, and ability to move. The cytoskeleton is highly dynamic as it keeps on constantly changing. Its framework of three types of protein filaments.

These filaments are microtubules, microfilaments, and intermediate filaments. Microfilaments are made up of actin protein while the tubulin protein subunits make the microtubules. Both actin and tubulin are the globular protein. On the other hand, several different proteins together make the intermediate filaments of the cytoskeleton.

7 0
4 years ago
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