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2 years ago

How has pliable whale bone been used over the centuries?

Biology

1 answer:

stira [4]2 years ago

8 0

Answer:

Many of the baleen eyeglass frames seen in advanced collections probably date from the late 17th to the very early 19th century. ... Whalebone is easy to carve and shape since it has a pliable almost plastic-like property. As such it was used in various manufacturing industries as a forerunner of plastic.

Explanation:

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The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0037 m. calculate the number of molecules inside th

Talja [164]

First, let calculate the volume of the rod shaped-bacteria:

S = length of the bacteria * surface of its side = 4.1 * (0.45 *0.45 * 3.14) = 2.6 µm3

Now, let's convert the moles into molecules (with Avogadro's law):

0.0037mol/L = 0.0037 * 6.023 *10^23 = 2.22 *10^21 molecules / L

Now let's convert The volume and the concetrnation into µm3 (molecules / µm3)

1 L = 1 dm3 = 1000 cm3 = 1000000 mm3 = 10^9 µm3

so 2.22 *10^21 molecules / L = 2.22 10^ 12 molecules / µm3

The answer is 2.22 10^ 12 molecules / µm3

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3 years ago

How does enzyme concentration affect reaction rates?

Umnica [9.8K]

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1 year ago

Which of the following organelles is primarily responsible for the formation of the cell's lysosomes

Marizza181 [45]

<h3>Answer;</h3>

Golgi apparatus or Golgi complex or Golgi bodies

<h3>Explanation;</h3>

Golgi apparatus are also called Golgi bodies or Golgi complex. They are complex vesicles and folded membrane within the cytoplasm of eukaryotic cells.
Golgi apparatus are important in the secretion and intracellular transport roles. A major function is the modifying, sorting and packaging of proteins for secretion. They are also involved in the transport of lipids around the cell, and the creation of lysosomes.
Therefore, Golgi apparatus are the organelles responsible for the formation of lysosomes, which are organelles that destroy old and worn out cellular organelles.

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3 years ago

The major pathway of communication between the right and left hemispheres is the:.

Sergeu [11.5K]

The major pathway of communication between the right and left hemisphere is the corpus callosum.

The cerebrum is the recognizable gray covering of the human brain, appearing to comprise the majority of its mass.
The cerebral cortex is the wrinkly area; the remainder of the anatomy is hidden behind that layer.
The longitudinal fissure, which is a significant gap between the two sides of the cerebrum, exists.
It divides the brain into right and left cerebral hemispheres, which are two independent parts.
The main channel for communication between the two hemispheres of the cerebral cortex is provided by the white matter of the corpus callosum, which is located deep inside the cerebrum.

learn more about corpus callosum here: brainly.com/question/13094825

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1 year ago

Between Point A and Point C, where is the steepest part of the hike? How do you know?

Shalnov [3]

Answer:

Going down Burr Hill; the contour lines are close together.

Explanation:

Between Points A and C, the steepest part is going down Burr Hill.

I know that, because the contour lines are so close together.

That means your vertical descent is quite steep compared to the distance you cover horizontally.

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3 years ago