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Nonamiya [84]
3 years ago
6

Scott's pimples result from the inflammatory response generated in his hair follicles. the statements below describe events that

occur during this response.
Biology
1 answer:
sesenic [268]3 years ago
4 0
As for the pimples that are generated in the hair follicles. <span>The overproduction of sebum resulting from the hormonal changes that Scott is experiencing is the initial event responsible for his acne. P. acnes is able to utilize the glycerol in sebum for fuel; in the process of doing so, it produces free fatty acids. These fatty acids lead to the production of inflammatory cytokines, which lead to vasodilation and increased vessel permeability. These changes allow for immune cells to move into the follicle. As the immune cells work to eliminate P. acnes, dead cells, bacterial waste, and pressure (from the massive influx of cells) will build. This ultimately distends the follicle. If great enough, this buildup will be visible on the skin as a pus-containing papule.</span>
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Nervous system found in simpler animals like jellyfish.
Flura [38]
<span>The answer is nerve net.

Jellyfish has a nerve net that surrounds its whole body. It makes a series of interconnected neurons that form net-like structure. This net surrounds the whole body of the jellyfish. Some jellyfish may have sensory structures, motor nerve net, and diffuse nerve net. Sensory structures receive environment signals and send them through diffuse nerve net to motor nerve net that activates muscle contractions.</span>
7 0
3 years ago
Why are protists considered the precursors to the eukaryotic diversity of life on the planet today
liubo4ka [24]

The protists belong to the kingdom Protista that comes under the domain Eukarya. Protists are a very broad group, comprising of various eukaryotes that do not fit into the other kingdoms, like animals, plants, and fungi. The protists were the initial eukaryotes.  

They would go on to become the precursors for each of the other eukaryotic kingdoms. By examining protists one can witness the transformation between the single-cell prokaryotes and modern multicellular eukaryotes.  


4 0
3 years ago
Sarah turns quickly and sees the soccer ball hurtling toward her face. She blinks and ducks for cover. During this reaction, Sar
balandron [24]

Answer:

The correct answer is: C.

Explanation:

  • The given situation is the example of a Reflex Action.
  • Reflex action can be defined as an action shown in response to a sudden stimulus.
  • The CNS or the Central Nervous System is comprised of the Brain and the Spinal Cord which receives the Sensory impulses from the Receptor organ, integrates or decides on the response which needs to be provided and then sends the Response impulses to the Effector organ.
  • The PNS or the Peripheral Nervous System is comprised of the sensory and motor neurons those are responsible for connecting the Sensory organ and the Motor organ to the CNS, respectively.
  • In the situation, Sarah's eyes perceives the ball and sends sensory impulses through the optic nerve containing the sensory neurons (PNS) to the spinal cord.
  • The spinal cord possess inter-neurons (CNS) that decides over the action to be done in response to the stimulus.
  • The Response stimulus is send from the inter-neurons via the motor neurons (PNS) to the eye muscles of Sarah and Sarah performs the action, that is, she blinks.
6 0
3 years ago
What is the process shown by letter A?
natima [27]

Answer:pensemos

Explanation:

Ajsjjs

3 0
2 years ago
Which biological process has genetic variation as a natural advantage?
adelina 88 [10]

Answer:

S**ual reproduction

Explanation:

mixing of DNA from two different germ cells

3 0
2 years ago
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