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
ICE Princess25 [194]
3 years ago
5

What is an example of a muscle of facial expression?

Biology
1 answer:
allochka39001 [22]3 years ago
5 0
Buccinators are muscles in the cheek that help smiling.
Laris oculi are muscles helping close eyelids.
Orbicularis oris is a muscle that helps manipulate the mouth:
the correct answer is D. all the above are muscles that help facial expression.
You might be interested in
The part of your brain that controls your heart and lungs is the ______. brain stem, cerebrum, cerebellum
Veronika [31]
A.) Brainstem............
5 0
3 years ago
Is best prevented by education—warning pregnant women about the risks of contracting the disease through gardening and contact w
labwork [276]
They are warned about contracting Toxoplasma.
6 0
3 years ago
How old is Napolean??????????????????????????
aliina [53]

Answer:

He was 51 one years old before he died.

Explanation:

However, Napoleon II lived to only a mere 21 years.

3 0
3 years ago
HELP ASAP I WILL GIVE BRAINLIST
adelina 88 [10]

Answer:

1) CO₂

2) 0.2551 g

Explanation:

The balanced reactions are:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

MgCO₃ + 2HCl → MgCl₂ + H₂O + CO₂

1) The gas produced is CO₂.

2) Calculate mass of CaCO₃:

(0.5236 g) (0.4230) = 0.2215 g CaCO₃

Convert to moles:

(0.2215 g CaCO₃) (1 mol / 100.1 g) = 0.002213 mol CaCO₃

Find moles of CaCO₃:

(0.002213 mol CaCO₃) (1 mol CO₂ / mol CaCO₃) = 0.002213 mol CO₂

Convert to mass:

(0.002213 mol CO₂) (44.01 g / mol) = 0.09738 g CO₂

Calculate mass of MgCO₃:

(0.5236 g) (0.5770) = 0.3021 g MgCO₃

Convert to moles:

(0.3021 g MgCO₃) (1 mol / 84.31 g) = 0.003583 mol MgCO₃

Find moles of MgCO₃:

(0.003583 mol MgCO₃) (1 mol CO₂ / mol MgCO₃) = 0.003583 mol CO₂

Convert to mass:

(0.003583 mol CO₂) (44.01 g / mol) = 0.1577 g CO₂

Total mass of CO₂:

0.09738 g CO₂ + 0.1577 g CO₂ = 0.2551 g CO₂

8 0
3 years ago
What describes the conversion of ADP to ATP?
vlada-n [284]

Answer:

ATP stands for adenosine triphosphate, where three phosphoric acids attach themselves to provide high energy phosphate groups to it. This process of conversion of ADP to ATP is called as phosphorylation.

Explanation:

5 0
2 years ago
Other questions:
  • 5. The "largest shovel of its kind in the world" can shovel how much dirt in an
    8·1 answer
  • Paraphrase four safety practices you should always use when you begin scientific inquiry
    5·1 answer
  • Compare and contrast photosynthesis and respiration.
    10·2 answers
  • Light can be diffracted or scattered true or false
    5·1 answer
  • Which two explanations are based on personal beliefs?
    8·1 answer
  • Which region of the visible spectrum is not absorbed well by chlorophyll?
    15·2 answers
  • During which phase does a cell spend the most time? And how in your worlds
    8·1 answer
  • If a hydrocarbon chain has a carbon to carbon double bond then it is _______________.
    10·2 answers
  • Following questions
    6·1 answer
  • Why do vertebrates have vertebrae instead of just having one long backbone?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!