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Goshia [24]
3 years ago
10

Which best describes the animal that she is studying?

Biology
2 answers:
svlad2 [7]3 years ago
8 0

Answer:

A mammal because it has a four chamber heart

Explanation:

erastova [34]3 years ago
8 0

Answer:

B. A bird because it has a crop

Explanation:

Took test on e d g e n

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Yanka [14]
An animal that eats only plants is called a herbivore because it comes from herbs
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3 years ago
Read 2 more answers
How do seismic waves help scientists understand Earth's layers? Select the two correct answers. (1 point)
qaws [65]

Seismic waves help scientists understand Earth's layers by:

  • Scientists can observe how seismic waves change speeds when passing through different layers.
  • Scientists can observe which seismic waves cannot pass through certain layers.

<h3>What are Seismic waves?</h3>

These are waves which are generated as a result of the movement of

materials in the earth. They change speed as a result of the collision with

materials in the earth and know the types of material present as a result of

some types not being able to pass through certain medium.

Read more about Seismic waves here brainly.com/question/8553835

4 0
2 years ago
The nucleotide is _____________.
Tems11 [23]
I think it might be A bit I’m not sure hope this helps
8 0
3 years ago
Some homeostatic imbalances cause a variable that is normally controlled by negative feedback to be abnormally controlled by pos
tigry1 [53]

Answer:

True

Explanation:

Some deviations from normal homeostasis activate the positive feedback loops to control the conditions which are otherwise regulated by negative feedback mechanisms.

For example, the blood levels of respiratory gases and H+ ions are regulated by a negative feedback system via chemoreceptors. The increased partial pressure of carbon dioxide gas and lowered pH or lowered partial pressure of oxygen in the blood are sense by central and peripheral chemoreceptors which in turn activate the neurons of the dorsal respiratory group (DRG).

The activated DRG triggers an increased in the rate and depth of the breathing to facilitate the inhalation of more oxygen and exhalation of CO2 to restore the normal levels.  

However, hypocapnia inactivates the chemoreceptors and does not allow negative feedback to restore the normal CO2 levels in the blood.  

Under such conditions, the positive feedback loop stimulates the DRG neurons more strongly in response to the increased partial pressure of CO2 above the normal levels than when the partial pressure of oxygen falls below the normal level. These dangerously lowered oxygen levels may also cause fainting.  

5 0
4 years ago
Can same enzyme have different kinetics for different substrates? What is the biological significance that?
ad-work [718]

An enzyme possesses different kinetics for different substrates as a result of this different products are formed.

Discussion:

  • Multi-substrate reactions are governed by intricate rate equations that specify how and in what order the substrates bind. If substrate B is altered while the amount of substrate A remains constant, the study of these reactions becomes considerably easier. The enzyme behaves exactly like a single-substrate enzyme in these circumstances, and a plot of v by [S] yields the actual KM and Vmax constants for substrate B.
  • These results can be utilized to determine the reaction's mechanism if a series of such measurements are carried out at various fixed concentrations of A. There are two different sorts of mechanisms for an enzyme that accepts two substrates, A and B, and converts them into two products, P and Q: ternary complex and ping-pong.

Learn more about enzymes here:

brainly.com/question/14953274

#SPJ4

3 0
2 years ago
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