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eduard
2 years ago
6

Which organisms are extremely small and use hosts as both home and food supply?

Chemistry
2 answers:
Tasya [4]2 years ago
8 0
<span><u><em>Answer:</em></u>
Parasites

<u><em>Explanation:</em></u>
Parasites are a type of <u>pathogen</u> that survive by hitchhiking a host. They usually do this as they perceive the host as type of protection for them in order to survive.

Beside this protection, the host provides these parasites with the necessary nutrition as they feed directly from the host.
<u>They can feed on different parts from the hosts including:</u>
1- the digestion as in case of tapeworm
2- brain tissue as in case of brain-eating ameoba
3- blood

Parasites' presence in the host's body can alter the functionalities and processes within the body and cause sickness.

Hope this helps :)</span>
Simora [160]2 years ago
7 0
I would say that the bacteria who live inside one's gut would constitute very small organisms that are extremely small and inhabit the gut as home and also feed off it to survive and in this case probably have a symbiotic relationship with our bodies as they help us to break down and digest food.
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X-rays have a wavelength small enough to image individual atoms, but are challenging to detect because of their typical frequenc
Cerrena [4.2K]

Explanation:

Given: \lambda = 8.38\:\text{nm} = 8.38×10^{-9}\:\text{m}

Its frequency \nu is defined as

\nu = \dfrac{c}{\lambda} = \dfrac{3×10^8\:\text{m/s}}{8.38×10^{-9}\:\text{m}}

\:\:\:\:= 3.58×10^{16}\:\text{Hz}

7 0
1 year ago
An atom has four electrons in its valence shell. What types of covalent bonds is it capable of forming?
Ierofanga [76]

Answer:

The answer to your question is below

Explanation:

An atom with four electrons in its valence shell is capable of forming:

single bonds and atom with the described characteristics, can form 4 single bonds or a combination of single bonds and double or triple bonds. Ex alkanes

double bonds this atom can form one double bond and two single bonds or two double bonds. Ex alkenes

triple bonds this atom can form one triple bond and one single bond, Ex alkynes.

6 0
1 year ago
The number of atoms in 98.3g mercury
Virty [35]
Moles = mass/atomic weight of mercury
          =      98.3/200.59
          =        0.49 moles.

Number of atoms = moles x 6.02 x 10^23
                             =    0.49 x 6.02 x 10^23
                             =       2.94 x 10^23 atoms.

Hope this helps!
                          


6 0
2 years ago
A 0.133 mol sample of gas in a 525 ml container has a pressure of 312 torr. The temperature of the gas is ________ °c.
Serggg [28]

Answer:

-253.2 ^{\circ}C

Explanation:

First of all, we need to convert the pressure of the gas from torr to Pa. We know that:

1 torr = 133.3 Pa

So, the pressure in Pascals is

p=(312 torr)(133.3 Pa/torr)=4.16\cdot 10^4 Pa

Then we also have:

n = 0.133 number of moles of the gas

V=525 mL=0.525 L=5.25\cdot 10^{-4} m^3 volume of the gas

The ideal gas equation states that

pV=nRT

where R is the gas constant and T the absolute temperature. Solving the equation for T, we find

T=\frac{pV}{nR}=\frac{(4.16\cdot 10^4 Pa)(5.25\cdot 10^{-4} m^3)}{(0.133 mol)(8.314 J/mol K)}=19.8 K

In Celsius, it becomes

T=19.8 K-273=-253.2 ^{\circ}C

3 0
1 year ago
Hydrogen gas reacts rapidly with oxygen gas in the presence of a platinum catalyst. Which equation correctly represents this
ivanzaharov [21]

Answer:

2H2(g) + O2(g) -pt---> 2H2O

7 0
1 year ago
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