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2 years ago

The respiratory system involves the intake of carbon dioxide into the body and the release of oxygen from the body.

Biology

2 answers:

topjm [15]2 years ago

8 0

Answer:

True and The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants

Bezzdna [24]2 years ago

4 0

Answer:

B. False

Explanation:

Respiratory system involves the intake of oxygen into the body and the release of carbon dioxide from the body.

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The rate at which the concentration of a drug in the bloodstream decreases is proportional to the concentration at any time t. I

Westkost [7]

Answer:

$C(t) = C_oe^{-kt}$

Explanation:

From the given information:

At any given time (t), let c(t) represent the concentration of the drug present in bloodstream.

Deriving the equation:

$\dfrac{dC}{dt}$ decrease proportionally to Concentration C

i.e

$\dfrac{dc}{dt} \alpha - C$

$\dfrac{dc}{dt} = -k C$

$\dfrac{dc}{c} = -k dt$

$\int \dfrac{dc}{c} = -k \int dt$

㏑(C) = -kt + λ

where,

λ is the integration constant.

Integrating at t = 0, concentration of blood = Co g/mL

C(0) = Co

㏑(C₀) = 0 + λ

λ = ㏑(C₀)

From ㏑(C) = -kt + λ

㏑(C) = -kt + ㏑C₀

㏑(C) - ㏑C₀ = -kt

$\dfrac{C}{C_o} = e^{-kt}$

$C(t) = C_oe^{-kt}$

∴

The concentration of drug in blood at any time t is:

$C(t) = C_oe^{-kt}$

4 0

2 years ago

Which best describes the aquifers?

kherson [118]

Answer:

Explanation:

on edg

8 0

3 years ago

Which of the following is true about the functions of rough endoplasmic reticulum (rough ER) and smooth endoplasmic reticulum (s

aalyn [17]

Rough ER - protein synthesis, transport of proteins throughout the cell
Smooth ER - lipid synthesis and cell detoxification

7 0

3 years ago

Which element IS found in proteins, but NOT found in carbohydrates?

Licemer1 [7]

Hi there.

I think the answer to your question is: nitrogen.

Nitrogen is found in proteins, but not carbs.

~

5 0

3 years ago

Animal cells and bacterial cells both may have all of the following cell structures except

Anarel [89]

The answer is a. because bacteria are prokaryotes and therefore don't have mitochondria

7 0

3 years ago

Read 2 more answers