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
Katena32 [7]
3 years ago
14

The external auditory canal ends at the

Biology
1 answer:
vova2212 [387]3 years ago
6 0

Answer:

d. tympanic membrane  

Explanation:

The external auditory canal is the communication channel between the ear pinna and the middle ear. It can be divided into two regions, one outermost and one innermost. The outermost region is of cartilaginous consistency and is covered by very fine hair and glands that secrete the earwax, a sticky yellow substance that acts to retain dust and microorganisms. The innermost region is of bone consistency and is housed in the temporal bone, one of the skull bones. The external auditory canal ends in a membrane called the tympanic membrane.

You might be interested in
Which are advantages of having multienzyme complexes rather than separate enzymes?
shepuryov [24]

Answer:

I Think so.

The enzymes can contain fewer amino acids

3 0
3 years ago
How many grams of the compound in the figure above are required to make 1 liter of a 0.5 M solution? (Note: The atomic masses, i
Dafna1 [17]

Answer:

This question is incomplete as there is no figure in the question but the compound in the figure is Ethanoic acid (CH3COOH). Hence, we can calculate the mass.

The answer is: 30grams

Explanation:

According to the question, the volume of the compound (CH3COOH) is 1litre while the molar concentration is 0.5M

Molarity or Molar concentration is calculated using the formula:

M= n/V

Where; M= Molarity (M) = 0.5M

n= number of moles (mol)

V= Volume (V) = 1L

Hence, number of moles (n) = M × V

n = 0.5 × 1

n = 0.5 moles.

To calculate the mass in grams of CH3COOH, we say;

Number of moles (n) × molar mass (MM)

Since atomic mass for (C= 12, H= 1 and O=16)

Molar mass of CH3COOH:

= 12 + 1(3) + 12 + 16 + 16 + 1

Molar mass of CH3COOH = 60g/mol

Mass (in grams) of CH3COOH = 0.5 moles × 60g/mol

Mass = 30grams.

Therefore, 30grams of CH3COOH compound are required to make 1 liter of a 0.5 M solution.

6 0
3 years ago
If you burn your hand, your pain receptors will trigger neural impulses. this process is known as ______.
evablogger [386]
This process is known as a involuntary reflex.
5 0
3 years ago
Which of the following statements about renewable resources is TRUE?
Scrat [10]

It's both B.They can never be depleted and C.They are replaceable by natural means.

3 0
3 years ago
Which taxonomic level has the closest relation? *<br> O Family<br> O Phylum<br> O Class<br> O Order
Dominik [7]
Class bc isnfnsfbwkdkcks
4 0
3 years ago
Other questions:
  • The second generation phenotypes resulting from the cross of true-breeding monohybrid pollination will display a ratio of _____.
    8·1 answer
  • When Mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. Which term describe
    6·1 answer
  • Write an essay discussing the ethics of designer babies. Do you believe humans should have the ability to choose the genetic tra
    9·1 answer
  • Which is correctly paired?
    9·1 answer
  • What are the structures found in a root hair cell of a plant?
    8·1 answer
  • Centromeres divide and sister chromosomes become full-fledged chromosomes during _____.
    6·1 answer
  • All of the black bears in a cave make up
    13·1 answer
  • Selective permeability select what enters and exist the cell
    7·1 answer
  • Pls help me 20 points for CORRECT answer
    7·1 answer
  • Please help will give brainliest no links please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!