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tatyana61 [14]
2 years ago
7

How many phyla are there in the animal kingdom?​

Biology
2 answers:
elena-s [515]2 years ago
8 0

Answer:approximately 35 phyla;

Explanation:

MAVERICK [17]2 years ago
6 0

Answer:

35 phyla

Explanation:

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Option A. Increases and decreases of the heart rate result from changes in the activity of the <u>medulla oblongata</u>

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What is medulla oblongata ?

  • Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem.
  • The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
  • The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration
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  • The pyramidal tracts are made up of the corticospinal tract (running from the cerebral cortex to the spinal cord) and the corticobulbar tract (running from the motor cortex of the frontal lobe to the cranial nerves in the brainstem)

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If a moving object loses mass, how can it keep its momentum constant?
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If a moving object loses mass, how can it keep its momentum constant?

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