Which chemical is responsible for opening the hair cuticle?

What is the function of the cell membrane

enot [183]

It is supposed to protect the cell from it's surroundings, or from the outside.

8 0

3 years ago

Double-replacement and acid-base reactions are examples of redox reactions. a. true b. false

ratelena [41]

<span>Double-replacement and acid-base reactions are examples of redox reactions.

</span><span>b. false</span>

7 0

3 years ago

Set up a ripple tank with a wave generator on one side.

Simora [160]

when the waves pass from the deeper water to the shallower water its speed will decrease.

<h3>What is refraction of wave?</h3>

Refraction of wave is the change in direction of a wave passing from one medium to another caused by its change in speed.

For example, waves travel faster in deep water than in shallower water.

Thus, we can conclude that when the waves pass from the deeper water to the shallower water its speed will decrease.

Learn more about refraction of waves here: brainly.com/question/1360744

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6 0

2 years ago

Which isotope will spontaneously decay and emit particles with a charge of +2?

VikaD [51]

Answer: The correct option is 4.

Explanation: All the options will undergo some type of radioactive decay processes. There are 3 decay processes:

1) Alpha decay: It is a decay process in which alpha particle is released which has has a mass number of 4 and a charge of +2.

$_Z^A\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\alpha$

2) Beta-minus decay: It is a decay in which a beta particle is released. The beta particle released has a mass number of 0 and a charge of (-1).

$_Z^A\textrm{X}\rightarrow _{Z+1}^A\textrm{Y}+_{-1}^0\beta$

3) Beta-plus decay: It is a decay process in which a positron is released. The positron released has a mass number of 0 and has a charge of +1.

$_Z^A\textrm{X}\rightarrow _{Z-1}^A\textrm{Y}+_{+1}^0\beta$

For the given options:

Option 1: This nuclei will undergo beta-plus decay process to form $_{25}^{53}\textrm{Mn}$

$_{26}^{53}\textrm{Fe}\rightarrow _{25}^{53}\textrm{Mn}+_{+1}^0\beta$

Option 2: This nuclei will undergo beta-minus decay process to form $_{80}^{198}\textrm{Hg}$

$_{79}^{198}\textrm{Au}\rightarrow _{80}^{198}\textrm{Hg}+_{-1}^0\beta$

Option 3: This nuclei will undergo a beta minus decay process to form $_{56}^{137}\textrm{Ba}$

$_{55}^{137}\textrm{Cs}\rightarrow _{56}^{137}\textrm{Ba}+_{-1}^0\beta$

Option 4: This nuclei will undergo an alpha decay process to form $_{85}^{216}\textrm{At}$

$_{87}^{220}\textrm{Fr}\rightarrow _{85}^{216}\textrm{At}+_2^4\alpha$

Hence, the correct option is 4.

7 0

4 years ago

Read 2 more answers

What is the likeliest limiting factor restricting phytoplankton to approximately the top ten feet of the ocean, rather than deep

dedylja [7]

quantity of light

Explanation:

The likeliest limiting factor that restricts phytoplankton to approximately the top ten feet of the ocean rather than deeper is the quantity of light available.

Phytoplankton are plants and they are the major producers in bodies of water.
The require the process of photosynthesis to manufacture their food.
During photosynthesis, phytoplankton takes in carbon dioxide and water and uses light to produce food in the process.
This life activity greatly relies on light.
The upper part of the ocean usually from 0-200m depth is the photic zone.
Deeper water is aphotic and receives little to no sunlight.
The photic zone is the zone where light reaches in water.
There is abundance of light in the photic zone.

learn more:

Photosynthesis brainly.com/question/4216541

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3 0

4 years ago