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2 years ago

Nevermindi got the answer

Biology

2 answers:

Sergeeva-Olga [200]2 years ago

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Answer:

Explanation:

Bond [772]2 years ago

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1. All living organisms need to have (20 points) organs O a heart cells a brain

In-s [12.5K]

Answer:

cells

Explanation:

all living organisms need to have cells

7 0

2 years ago

A spheroidal bacterium with a diameter of 1 mm contains 2 molecules of a particular protein. What is the molar concentration?

creativ13 [48]

Answer : The molar concentration is, $6.35\times 10^{-18}mol/L$

Explanation :

First we have to calculate the moles of protein.

$\text{Moles of protein}=\frac{\text{Number of molecules of protein}}{\text{Avogadro's number}}$

Number of molecules of protein = 2 molecules

Avogadro's number = $6.022\times 10^{23}molecules/mol$

$\text{Moles of protein}=\frac{2\text{ molecules}}{6.022\times 10^{23}molecules/mol}=3.32\times 10^{-24}mol$

Now we have to calculate the radius.

Radius = $\frac{Diameter}{2}=\frac{1mm}{2}=0.5mm=5.0\times 10^{-4}m$

Conversion used : (1 mm = 0.001 m)

Now we have to calculate the volume.

$V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\times 3.14\times (5.0\times 10^{-4}m)^3$

$V=5.23\times 10^{-10}m^3=5.23\times 10^{-7}L$

Conversion used : (1 m³ = 1000 L)

Now we have to calculate the molar concentration.

$Concentration=\frac{\text{Moles of protein}}{\text{Volume}}$

$Concentration=\frac{3.32\times 10^{-24}mol}{5.23\times 10^{-7}L}$

$Concentration=6.35\times 10^{-18}mol/L$

Thus, the molar concentration is, $6.35\times 10^{-18}mol/L$

4 0

3 years ago

Bones and cartilage are connective tissues’ prove this with evidences.

kherson [118]

Answer:

hope it helps : )

Explanation:

Cartilage and Bone are specialized forms of connective tissue.

They are both made up of cells embedded in an extracellular matrix.

It is the nature of the matrix that defines the properties of these connective tissues.

Cartilage is thin, avascular, flexible and resistant to compressive forces.

Bone is highly vascularized, and its calcified matrix makes it very strong.

6 0

3 years ago

Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land? Frog Scallop Salamander Scorpio

Sladkaya [172]

Answer:

frog

Explanation:

frogs live their first part of their lives in water so they need gills but after metamorphosis they live on land so they need lungs.

5 0

3 years ago

Read 2 more answers

One biotic factor that limits the carrying capacity of any habitat is the

kogti [31]

Consumers/producers: A surplus of consumers and a reduced amount of producers cause an ecosystem to collapse. Their are more mouths to feed then there is food

8 0

3 years ago