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Sever21 [200]
3 years ago
14

In prokaryotes, the rigid layer of material outside the plasma membrane is a _________.

Biology
1 answer:
Anettt [7]3 years ago
8 0
Cell wall. 
Hope this helps!
pls give Brainliest answer!
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Increases and decreases of the heart rate result from changes in the activity of the _______. A. medulla oblongata B. thalamus C
pantera1 [17]

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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7 0
2 years ago
Identify the structures of the four____ found in living
jonny [76]

Answer:

Organic Molecules

Explanation:

8 0
3 years ago
The leg muscles of a sprinter would differ from a marathon runner in that ________. The leg muscles of a sprinter would differ f
andrew11 [14]

Answer:

The correct answer is - per gram, the marathon runner's muscles would contain more myoglobin than the sprinter's muscles.

Explanation:

Marathon runners have smaller leg muscles and thinner quads and calves as marathon runners require slow-twitch muscles while in sprinters the fast-twitch muscle requires. Slow-twitch muscles of marathon runners have more amount of myoglobin, per gram than fast-twitch muscles.

Myoglobin acts as local oxygen storage that provides oxygen to the muscles in case of less oxygen supply than required temporarily and a marathon race is an intense exercise or activity that requires more oxygen.

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Complete set of genetic information for a cell is carried in a molecule clled
Alenkinab [10]
<em>DNA</em><em> </em>is what carries the genetic code for living organisms it contained in the nucleus of cells. 

Hope that helps :)
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Researchers are studying the way plants move in response to stimuli. Which scenario could be used to test phototropism? A) Two s
maks197457 [2]
In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
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