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Solnce55 [7]
3 years ago
15

Cuadro sobre las barreras de la inmunidad

Biology
1 answer:
amm18123 years ago
7 0

El sistema inmune innato se compone principalmente de barreras físicas, como la piel y las membranas mucosas, barreras químicas, a través de la acción de péptidos antimicrobianos y especies reactivas de oxígeno [4], células inmunes innatas y mediadores solubles como el sistema del complemento, anticuerpos innatos

Explanation:

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Chapter 1: Introduction: Evolution and the Foundations of Biology 1. _______ DNA is composed of building blocks called _____. a.
irina [24]

Answer:

C. Nucleotides

Explanation:

Nucleic acids are macromolecules which are polymers of nucleotides. There are two types of nucleic acids namely: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleotides are the building blocks of nucleic acids.

A nucleotide is made up of three components:

- A phosphate group

- A five carbon sugar called pentose sugar. In RNA the sugar is ribose sugar and in DNA the sugar is deoxyribose sugar.

- Nitrogenous bases: There are four different types of bases in DNA: adenine, guanine, cytosine and thymine. In RNA thymine is replaced by uracil. Adenine and guanine are purines whereas cytosine, thymine and uracil are pyrimidines.

Nitrogenous base and sugar together are called nucleoside and when phosphate is also attached then it is called nucleotide.

6 0
3 years ago
Which statements are accurate about earthquakes that occur during the formation of a chain of islands and seamounts by a hotspot
Westkost [7]

Answer:

The following are accurate about earthquakes which occur during the formation of a chain of Islands and seamounts by hotspots:

- Earthquakes occur along fault lines within volcanoes formed by the hotspot.

- Earthquakes occur along fault lines during plate movements.

- Earthquakes occur when Earth’s crust bends under the weight of islands formed by the hotspot.

Explanation:

8 0
3 years ago
According to the kinetic theory of matter, all matter is made of molecules which continuously and randomly move. However, the am
sweet-ann [11.9K]
The answer is D.book `study island` 
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State two differences between the light stage and the dark stage of photosynthesis
kirill [66]

Answer:

Dark reaction takes place with the presence or absence of sunlight. Light reaction is considered as the light dependent reaction. Light reaction is also called as photo-chemical phase

Explanation:

brain leist bhe ty:)

6 0
2 years ago
Heat loss is defined as…
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Answer:

evaporative heat loss + convective heat loss + conductive heat loss + radiative heat loss

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