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exis [7]
3 years ago
13

When you begin exercising regularly, what happens to the blood vessels in his muscles?

Biology
1 answer:
alexdok [17]3 years ago
5 0

Answer

The blood vessels in the skin dilate, increasing blood flow to the skin.

Explanation:

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In a grassland ecosystem, a prolonged drought has caused depletion in food sources for a species of rabbit. Which of the followi
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Genetically diverse population, with some rabbits able to survive with fewer water resources than usual

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3 years ago
Menciona 2 propiedades de una onda ??​
viva [34]

Answer:

una propiedad que varía y la otra que permanece constante cuando la onda pasa de un medio a otro. Las dos propiedades son: i) Longitud de onda ii) Frecuencia

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7 0
3 years ago
Which statements describe functions of antibodies? Select two options.
vodomira [7]

Answer:

This question lacks options, options are:

A.They maintain the cell’s shape.

B.They regulate cell processes.

C.They protect the body from infectious agents.

D.They signal the immune system to destroy pathogens.

E.They speed up biochemical reactions.

F.They send electrical signals.

The correct answers are C and D.

Explanation:

B cells and T cells use different biological weapons to attack the pathogen. The first secrete proteins called antibodies, which are distributed via the blood or the exposed surfaces to the environment, such as mucous. Antibodies are glycoproteins that circulate in the bloodstream looking for antigens that cause some type of damage to the body. Antibodies recognize and neutralize pathogens in a highly efficient way. Once the antibodies are produced, they remain circulating in the bloodstream for several months, which generates immunity for a long period of time to a certain antigen, in other words, they are capable of recognizing other molecules (antigens) in a very specific way and forming stable complexes with them (immune complexes). Its appearance in plasma is part of the adaptive immune response, in what is known as a specific humoral response, constituting a very effective defense against pathogens.

3 0
3 years ago
Which phase of meiosis lines the chromosomes up in the center of the cell?
AnnyKZ [126]
The phase is metaphase
6 0
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Acylhomoserine lactones used in quorum sensing regulate their own synthesis by a(n) _________ system. Multiple Choice riboswitch
zmey [24]

Acylhomoserine lactones used in quorum sensing regulate their own synthesis by an autoinduction system.

  • Numerous bacteria use acyl homoserine lactones (acyl-HSLs), significant intercellular signaling molecules, to track the density of their population for quorum-sensing control of gene expression. The LuxI family of proteins produces the signals in question.
  • A lot of proteobacteria use quorum-sensing signals from acyl-homoserine lactones.
  • Cells create a baseline amount of signal at low population densities, and when enough signal has accumulated in the environment, it binds to its receptor and activates quorum-sensing-dependent genes.

learn more about Acylhomoserine here: brainly.com/question/14452252

#SPJ4

7 0
2 years ago
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