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vampirchik [111]
2 years ago
14

What two things must be present for a mechanical wave to form?

Biology
1 answer:
maksim [4K]2 years ago
7 0

Answer:

b.energy andresistence

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Look at the jellyfish in figure 25-6. How many planes of symmetry could you draw through this animal?
Valentin [98]

Answer:

None.

Explanation:

The tentacles are all different lengths.

6 0
3 years ago
According to selye (1956, 1976), the _____ phase of the general adaptation syndrome is responsible for the person making efforts
STALIN [3.7K]
<span>According to Selye (1956, 1976), the resistance  phase of the general adaptation syndrome is responsible for the person making efforts to cope with the threat.</span>
There are three phases in the <span>Hans Selye's General Adaptation Syndrome (GAS). The first one is the Alarm (</span>organism becomes mobilized to meet the threat) . The second is Resistance, and the third is the Exhaustion (it occurs
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7 0
3 years ago
Which of these is NOT a type of local wind?<br> A. Valley<br> B. Glacier<br> C. Mountain<br> D. Sea
Tresset [83]

Answer:

B. Glacier

Explanation:

Sea breezes, land breezes, mountain breezes, and valley breezes are all types of local winds. Glacier are NOT related

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<u><em>Hope this help :)</em></u>

6 0
2 years ago
During an action potential, which of the following changes significantly? Group of answer choices
tino4ka555 [31]

The process is ocurring by steps, starting with depolarization.

1- Na+ permeability > K+ permeability

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3- K+ permeability > Na+ permeability

4- Vm (membrane potential) approaches EK+ (quilibrium potential for potassium)

4 0
3 years ago
How is plastic made?
Kruka [31]

Plastic is taken from the natural, organic substances called Cellulose, Coal, Natural Gas, salt and Crude oil.

5 0
3 years ago
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