<span>I believe it is light, but this is kind of a confusing question. Technically there is a independent and dependent variable in the question. The variable being manipulated is light, and the earthwork activity depends on the light. </span>
I didn't get it ...
can you explain that question
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
- The medulla is divided into two main parts: the ventral medulla (the frontal portion) and the dorsal medulla (the rear portion; also known as the tegmentum).
- The ventral medulla contains a pair of triangular structures called pyramids, within which lie the pyramidal tracts.
- 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)
To know more about medulla oblongata, refer:
https://brainly.in/question/123107
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Well first of all...we require on each other.Pants give us oxygen and we give them carbon dioxide.Mushrooms helps in pizza.Another thing they have in common is that they need air,water and food etc.Third they all have a growth sprout.Finally....they were created by God.And also they've always been alive.
Answer:
Macromolecule OR nucleic acid
Explanation:
It is one of four main types of macromolecules found in all forms of life, and its full name is deoxyribonucleic acid.
Best bet is macromolecule, but this is a very vague question so nucleic acid could also be correct.