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Vika [28.1K]
3 years ago
12

______________ is a contractile tissue that can accurately change the lumen size of an arteriole so that the conductance of flow

through the region is controlled in the vascular system.
Biology
1 answer:
umka21 [38]3 years ago
5 0

Answer: Vascular smooth muscle cells.

Explanation:

Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).

Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.

Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.

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Give an example of how a biome is an open system from the point of view of the biosphere, atmosphere, lithosphere, and hydrosphe
Karolina [17]

Given what we know, we can confirm that the biome is in fact an open system due to the interactions between the biosphere, atmosphere, lithosphere, and hydrosphere.

<h3>What is the biome?</h3>
  • The biome is the collection of air, soil, water, and all the organisms that reside within these ecosystems.
  • In order to describe an open system, we say that the system must have external interactions.
  • A biome is an open system because it has both internal and external interactions, such as with asteroids in space.
  • The internal interactions include the ones between the<em><u> biosphere, atmosphere, lithosphere, and hydrosphere.</u></em>
  • A prime example is the movement of water through each of the spheres.

Therefore, since each part of the biome interacts with each other as well as with external sources such as space, we can confirm that it complies with the definition of an open system.

To learn more about open systems visit:

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7 0
2 years ago
How do amino acids join to form proteins
ser-zykov [4K]

Answer:

Inside your cells, the individual amino acids can bond together by forming a peptide bond, which is simply a chemical bond that joins amino acids together. More specifically, peptide bonds join the carboxyl group of one amino acid with the amino group of another.

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3 0
3 years ago
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The diagram below shows four positions of the Moon. Which position produces the highest possible tides?
Nookie1986 [14]

Answer:

Full moon and New Moon

7 0
2 years ago
hich of the following amino acids can contribute to the three-dimensional structure of a protein by forming covalent bonds with
ollegr [7]

Cysteine contributes to the three-dimensional structure of a protein by forming covalent bonds with an identical amino acid in another part of the protein.

<h3>What is the Cysteine Structure?</h3>
  • Covalent disulfide bonds form between the sulfhydryl (-SH) groups of cysteines in different parts of a protein are very important in determining the three-dimensional shape of the protein.
  • is a HOOC-CH-(NH2)-CH2-SH proteinogenic amino acid that is semi-essential. Cysteine's thiol side chain frequently functions as a nucleophile in enzyme processes.
  • The sign Cyz is occasionally used when a deprotonated catalytic residue is present.
  • The sign Cym can also be used to usually denote the deprotonated form.
  • The thiol is capable of being oxidized to produce the disulfide derivative cystine, which is crucial for many proteins' structural integrity. Cyx is sometimes used in this context. It carries the E identifier E920 when added to food.
  • The codons UGU and UGC encode the amino acid cysteine.
  • Cysteine and methionine, which contain sulfur, are more quickly oxidized than other amino acids.

To know more about Cysteine with the given

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5 0
1 year ago
Orchid seeds are tiny, with virtually no endosperm and with miniscule cotyledons. If such seeds are deposited in a dark, moist e
Xelga [282]
<h2>c.is the correct option</h2>

Explanation:

Fungi might assist in seed germination by providing the embryos with some of the organic nutrients the fungi have absorbed

  • Fungi is an eukaryote which digests food externally and absorbs nutrients directly through its cell walls
  • Fungi absorb nutrients through following three ways:
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  • By feeding on living hosts:fungi live in or on other organisms and get their nutrients from their host
  • Living mutualistically with other organisms: mutualistic fungi live harmlessly with other living organisms;fungal component absorb water and minerals and provide them to algal component which uses them to make food

In dark,moist environment nutrient availability is less hence fungi helps in providing orchid seeds the nutrients which it has absorbed

8 0
3 years ago
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