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azamat
3 years ago
8

Multicellular organisms must be protected from the external environment. Because of this, cells of even the simplest multicellul

ar organisms are arranged to form an external barrier of
A)
cellular tissue.


B)
epithelial tissue.


C)
connective tissue.


D)
interstitial tissue.
Biology
2 answers:
Vladimir [108]3 years ago
7 0

Answer:

epithelial tissue

Explanation:

ollegr [7]3 years ago
3 0

Answer:

Multicellular organisms must be protected from the external environment. Because of this, cells of even the simplest multicellular organisms are arranged to form an external barrier of

Explanation:

B) epithelial tissue

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Explanation:bc im smrt

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2 years ago
chegg e. coli has to be grown in the presence of to the lac operon. group of answer choices lactose: repress lactose: induce glu
zhuklara [117]
<h3 />

The lac operon of E. coli contains genes involved in lactose metabolism. It's expressed only when lactose is present and glucose is absent.

<h3>How is the lac operon triggered by E. coli?</h3>

The lac operon of E. coli contains genes related to lactose metabolism. Only when lactose and glucose levels are low does it manifest symptoms. Two regulators that control the operon's "on" and "off" states in response to lactose and glucose concentrations are lac repressor and catabolite activator protein (CAP).

<h3>Why does E. coli prefer glucose to lactose?</h3>

Because it promotes quicker development than other sugars and is the first sugar to be consumed in sugar combinations, glucose is frequently the best carbon source for E. coli.

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6 0
1 year ago
Conclude Assess what kinds of traits make invertebrate such a diverse group of animals.
Lina20 [59]

Answer:

Invertebrates have a very quick life cycle and die very easily, as a result, they evolve very quickly into many different types of animals. also, they are often very small and their ecosystems are subject to much quicker change than that of vertebrates, meaning that mutations in their genes become relevant more often. Many invertebrates span very large areas (sea animals span most of the oceans, insects span entire continents) and so they evolve to be different species in different places.

Or

They do not have bones, they live on water or land, they can have soft bodies or exoskeletons, and others are parasites.

6 0
2 years ago
______________ these compounds regulate cell division rates, maintain normal kidney function and fluid balance, direct hormones
Alik [6]

<u>Full question</u>:

___________ these compounds regulate cell division rates, maintain normal kidney functions, and fluid balance, direct hormones to their target cells, regulate the flow of substances in an out of cells and regulate ovulation.

a- triglycerides

b- amino acids

c- eicosanoids

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<u>Answer:</u>

Eicosanoids these compounds regulate cell division rates, maintain normal kidney functions, and fluid balance, direct hormones to their target cells, regulate the flow of substances in an out of cells and regulate ovulation.

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Eicosanoids behave like hormones, but they did not desire to move. Eicosanoids sometimes seem on cells nearby to their locality of composition. Eicosanoids also swiftly split down, so they are incapable of progress quite notably. Most eicosanoids are created from arachidonic acid.

Hen, eggs, burgers are samples of meals that render arachidonic acid. The eicosanoids obtained from certain fatty acids possess a diversity of consequences on your body. They also modify the insusceptible rejoinder and several respiratory and generative processes.

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