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dybincka [34]
3 years ago
5

Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land?

Biology
2 answers:
kondaur [170]3 years ago
8 0

Answer:

The third one

Ghella [55]3 years ago
7 0

Answer:

3rd one

Explanation:

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Drag each tile to the correct box. Lucia is walking barefoot in her yard. She accidentally steps on a nail. How will her nervous
tekilochka [14]

Answer:

First the proprioceptors found in the tissues will capture tissue damage and the presence of a continuity solution in the skin, then these receptors will activate the afferent pathway, which is the pathway of pain, which is sensory.

This stimulus that ascends to the central nervous system activates the "flight" mechanism in the face of pain (it is also known as the withdrawal mechanism).

It is in this way that a stimulation is sent to the alpha motor neuron in the form of an action potential as an efferent pathway to the skeletal muscles of the foot and the damaged leg, so that an automatic and involuntary muscle contraction is generated in a matter of millisemas of second after the damage, so the foot is removed from the damage area.

Explanation:

The withdrawal mechanism is a reflex that the human acquires before pain, that is why it is the muscular contraction is automatic and fast once the pain occurs.

So as a summary: 1 - the proprioceptors of the damaged tissue are activated 2- the signal of tissue damage rises as afferent to the CNS 3- the CNS responds by activating a signal that will be sent by interneuronal connections to the alpha motor neuron 4- the signal arrives as potential of action to the alpha motor neuron that innervates the muscles of the surrounding area to which it is damaged 5 - the muscles contract, generating the withdrawal of the limb.

6 0
3 years ago
What is carcinogen and phlebotomy?
NARA [144]

Answer:

A carcinogen is a substance capable of causing cancer in living tissue. A phlebotomy is the surgical opening or puncture of a vein in order to withdraw blood or introduce a fluid.

5 0
4 years ago
An insured has endured multiple surgeries and hospitalizations for an illness during the summer months. Her insurer no longer bi
9966 [12]

Answer:

Stop loss limit.

Explanation:

The health insurance may be defined as a type of agency or policy that covers the medical expenses of the individual either fully or completely. The individual must pay some amount for the continuity of the health insurance.

The stop loss limit in a health insurance determines that the insurer do not pay for the medical expenses of an individual. This might occur when the insurance amount has been reached up to a certain limit and this limits the insurer loss.

Thus, the answer is stop loss limit.

6 0
4 years ago
Which action will result in the greatest decrease in rain forest stability? removing one species of plant for medicine cutting d
VikaD [51]
Cutting down all the trees for lumber
4 0
3 years ago
xplain how the chemical breakdown of glucose results in the production of a hydrogen ion concentration gradient across the mitoc
yan [13]

A high-energy electron is transferred along an electron transport chain to the inner mitochondrial membrane. Hydrogen is pumped out of the matrix space by the energy released. Through ATP synthase, the gradient produced by this forces hydrogen back through the membrane. when participating in the crucial process of oxidative phosphorylation.

Only a tiny portion of the glucose's totally free energy is released when it is transformed into pyruvate by the glycolytic process.
The breakdown of glucose into pyruvate within a cell's cytoplasm is known as glycolysis. The final phase of cellular respiration, known as oxidative phosphorylation, generates ATP using an ATP synthase gradient and a hydrogen ion gradient. The majority of the ATP produced during cellular respiration is produced during this process. Pyruvate can diffuse into mitochondria under aerobic conditions, where it enters the citric acid cycle and has reducing equivalents in the forms of NADH and FADH2.

To learn more about oxidative phosphorylation Please visit -brainly.com/question/12322994
#SPJ4

8 0
2 years ago
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