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
const2013 [10]
2 years ago
12

Leketa is a secret agent. She needs to send secret messages to her partner, Daniel. Leketa uses the sound waves from the beat of

a drum to send her messages. Leketa and Daniel create a secret code using a pattern of drum beats to communicate with one another. In which of the following places would using a drum work to send her secret messages?
A. The drum will work on Earth, under the water, and in outer space.
B. The drum will work on Earth and under the water. The drum will not work in outer space.
C. The drum will work on Earth and in outer space. The drum will not work under the water.
D. The drum will work under the water and in outer space. The drum will not work on Earth.


Why did you choose your answer to Question 4? Explain in terms of sound waves.
Biology
1 answer:
Damm [24]2 years ago
7 0

Answer:

C.  The drum will work on Earth and in outer space. The drum will not work under the water.

You might be interested in
What is this map called.....
nexus9112 [7]

Answer:

Robertsonian translocation

4 0
3 years ago
What is the large gland which extends into the neck and partially covers the heart.
Brut [27]
That would be the Thymus Gland.
8 0
3 years ago
Read 2 more answers
The atoms of different phosphorus isotopes __________.
Jlenok [28]

Answer:

Have different numbers of neutrons

Explanation:

Isotopes of an element have different atomic numbers because thy differ in neutron number even though proton number remains the same across the isotopes. The mass number is the summation of the proton and neutron number. Phosphorus has approximately 23 isotopes whose mass number range between 25 and 47. Only ³¹P is stable.

4 0
3 years ago
In what ways are autorhythmic fibers similar to and different from contractile fibers?
Leto [7]
I think Autorhythmic fibers are fibers that are self excitable or on their own for example some cardiac muscle. They  repeatedly generate action potentials that trigger heart contractions.They continue to stimulate a heart to beat even when it is removed from the body. In comparison to contractile fibers, autorhythmic fibers are self excitable and do not require nervous system stimulation to trigger contractions. Contractile fibers have stable resting membrane potentials of -90mV, when a contractile fibers reaches threshold by action potential, the voltage gated fast sodium ions channels will open. 
5 0
3 years ago
What is not a feature of rbc morphology?
kotegsom [21]

The given question is incomplete as options are not provided, however the options are as follows:

A. a large surface area-to-volume ratio

B. ability to form stacks known as rouleaux

C. a convex shape allowing for more efficient transport of oxygen

D. ability to bend and flex when entering capillaries

Answer:

The correct answer is - option C.

Explanation:

RBC cells are biconcave in the shape it is form shape of dub bell in general. These cells are small, round. The biconcave shape of the blood cells helps in the flow of the blood easily and these cells have no nucleus like other cells to have high amount of hemoglobin that is a pigment that carry oxygen and other gases for easy gaseous exchange.

Due to their flexible biconcave shape they can bend and flex accordingly during entering capillaries. The shape of the RBC helps in making stacks and large surface to area ratio.

Thus, the correct answer is - option C.

8 0
3 years ago
Other questions:
  • In an oil spill, why does the oil not mix with the sea water? Lipids are hydrophobic. Lipids are hydrophilic. Lipids are saturat
    6·2 answers
  • The A and B antigens in humans may be found in water-soluble form in secretions, including saliva, of some individuals (Se/Se an
    9·1 answer
  • James was observing cells under a microscope. He observed some cells which had a layer outside the plasma membrane. What is this
    10·2 answers
  • Globulin is a protein. Which of the following organelles will assist in the synthesis of globulin
    8·2 answers
  • True or false? investigators trying to track the early spread of hiv found hiv-infected blood samples from as early as 1956, in
    13·1 answer
  • "an advantage of gas exchange in fresh water, compared with gas exchange in air, is that _____."
    7·1 answer
  • The legs of a trapezoid are parallel. true or false.
    5·1 answer
  • How to prevent bias in scientific investigation
    13·1 answer
  • ----- are fracture in the earths crust where rocks move and slide past other
    7·1 answer
  • Can someone please help me with this? I will mark you as brainliest
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!