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cupoosta [38]
3 years ago
12

Briefly define the purpose of the following organelles: Nucleus, Ribosome, Nucleolus, RER (Rough Endoplasmic Reticulum), SER (Sm

ooth Endoplasmic Reticulum), Golgi Apparatus (Goldie bodies), Lysosomes, Cilia, Flagella, Extracellular Matrix (ECM), Mitochondria.
Biology
1 answer:
Dafna1 [17]3 years ago
5 0

The Nucleus contains most of the genetic information for making proteins

The ribosome is the place where the polypeptide strand and the mRNA meet in order to create a protein

Nucleolus has a role in the biogenesis of the ribosomes

RER -intracelular transport and protein making because of the attached ribosomes

SER-intracelular transport,lipid synthesis and it is the place where the glicogen is metabolized

Golgi Apparatus has a secretive role

Lysosomes contain 40+ hydrolytic enzimes that help with intracelular digestion

Cilia and flagella both help with the moving of the cell

Extracellular matrix keeps the cells together

The Mitochondria sythesizes ATP in a process caled oxidative phosphorylation of organic substances

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An endangered species of fish has a population that is decreasing exponentially:A=A0 e^kt The population 10 years ago was 1700.
bija089 [108]

Answer:

The correct answer is E. none of the above.  The population will drops below 100 when t ≥ 38.

Explanation:

Given A= A0 e^kt. The population 10 years ago is A0, the population today is A(10), and we have to find the value of "k" and then the time when population drops below 100.

So, A(t) = 1700 e^kt ⇒ A(10) = 1700 e^k(10) ⇒ 800 = 1700 e^k(10) ⇒

800/1700 = e^k(10) ⇒ln (800/1700) = k(10) ln e ⇒ -0.754/10 = k ⇒

k = -0.0754.

Now you have all the parameters, so you can find the time at which the population drops below 100.

A(t) = 1700 e^kt ⇒ 100 = 1700 e^(-0.0754)t ⇒100/1700 = e^(-0.0754)t ⇒

ln(100/1700) = (-0.0754)t ln e ⇒ [ln(100/1700)]/(-0.0754) = t ⇒

t = 38.

So, the population will drops below 100 when t ≥ 38.

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3 years ago
Large masses of low-pressure air generate destructive rotating storms,
Bad White [126]

Answer:

Tropical Cyclones

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Tropical Cyclones and Storm Surges

Mid-latitude cyclones, also called frontal cyclones, are large traveling low-pressure systems that develop along weather fronts (lines of separation between a cold air mass and a warm air mass) in the mid-latitudes (35°–55° N and S).

Hope this helps :)

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3 years ago
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