1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
QveST [7]
2 years ago
10

The brain, spinal cord, and nerves are all major organs of the ___ system.

Chemistry
2 answers:
lyudmila [28]2 years ago
5 0

Answer:

nervous system

Explanation:

nervous system

densk [106]2 years ago
4 0

nervous systemsystemsystem

You might be interested in
What are two factors that affect the function of enzymes
lapo4ka [179]

Answer:

Temperature

PH

Explanation:

Enzymes are organic catalysts that speeds up the rate of a chemical reaction. Their activities are affected by temperature and pH of the environment among other factors.

  • At extreme temperatures, enzymes can easily be denatured and they will cease to act.
  • At extremes of pH, they can also be adversely affect.

Enzymes generally have temperature and pH window for their activity.

4 0
3 years ago
List two examples of items that undergo sublimation
umka21 [38]

Answer:

Examples of solids that sublime are dry ice (solid carbon dioxide), iodine, arsenic, and naphthalene (the stuff mothballs are made of).

Explanation:

8 0
3 years ago
It takes 2,267 joules of heat to raise the temperature of a 44.5 gram sample of a metal from 33.9°C to 288.3°C. What is the heat
ehidna [41]

Answer:

\boxed{\text{0.200 J$^{\circ}$C$^{-1}$g$^{-1}$}}}

Explanation:

The formula for the amount heat q absorbed by a substance is

q = mcΔT

where

 m = the mass of the substance

  C = the specific heat capacity of the material

ΔT = the temperature change

Data:

 q = 2267 J

m = 44.5 g

T₁ = 33.9 °C

T₂ = 288.3 °C

Calculations:

ΔT = (288.3 - 33.9) °C = 254.4 °C

\begin{array}{rcl}2267 & = & 44.5 \times C \times 254.4\\2267 & = & 11 180C\\C& = & \dfrac{2267}{11180}\\\\& = & \textbf{0.200 J$^{\circ}$C$^{-1}$g$^{-1}$}\\\end{array}

\text{The specific heat capacity of the metal is \boxed{\textbf{0.200 J$^{\circ}$C$^{-1}$g$^{-1}$}}}

5 0
3 years ago
Which of the following is the definition of an adaptation?
Serggg [28]

Answer:

A

Explanation:

6 0
3 years ago
You have come down with a nasty cold and would like to understand why the virus that infected you is making you feel so lousy. W
umka21 [38]

Answer:

a) The volume is 5.236x10⁻¹³L

b) The molarity of a single virus is 1.91x10¹² mol/L

c) The molarity for a 100 virus particles is 1.91x10¹⁴ mol/L

Explanation:

a) Given:

D = diameter of the cell = 10 μm

r = radius = 10/2 = 5 μm

The volume of the spherical cell is equal:

V=\frac{4}{3} \pi r^{3} =\frac{4}{3} \pi *(5)^{3} =523.6\mu m^{3}

If 1 μm³ = 1x10⁻¹⁵L, then 523.6 μm³ = 5.236x10⁻¹³L

b) The molarity is:

M=\frac{number-of-moles}{volume-of-solution}

For a single virus within the cell

M=\frac{1}{5.236x10^{-13} } =1.91x10^{12} mol/L

c) For a 100 virus particles the molarity is:

M=\frac{100}{5.236x10^{-13} } =1.91x10^{14} mol/L

4 0
3 years ago
Other questions:
  • In a cooking context, which of the following materials is the best heat conductor?
    10·1 answer
  • How does upwelling affect coastal fisheries?<br> look atthe pic
    6·2 answers
  • Round off the following numbers to the number of significant figures (sf) indicated.
    11·2 answers
  • Some metals corrode very readily. Metals from which groups might be used to provide a protective coating? Justify the answer
    9·1 answer
  • AgNO2+Na3PO4<br><br> Solve and predict if its a precipitate
    9·1 answer
  • Draw the structures of the products of the neutralization reaction between amide ion (nh2-) and acetic acid.
    12·1 answer
  • The eyes of reptile pass a single visual signal to the brain when the visual receptors are struck by photons of wavelength of 85
    15·1 answer
  • Please help me, Thank you!
    5·2 answers
  • A face centered cubic cell has an edge length of 495 pm. What is that atomic radius?
    14·1 answer
  • If a 2.75 L gas sample is held at a constant temperature, and its pressure is changed from 750.0 torr to 360.0 torr, what will t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!