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likoan [24]
3 years ago
15

What is the immune systems first line of defense against invading pathogens

Biology
1 answer:
GREYUIT [131]3 years ago
8 0
The first line of defense, <span>includes physical and chemical barriers. These include your skin, tears, mucus, cilia, stomach acid, urine flow, bacteria and white blood cells called necrophiliacs.</span>
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For which of the following would a transmission electron microscope be the best type of microscope to use?
valentina_108 [34]
Transmission electron microscope produces the image through a beam of electrons. It is most useful to inspect the morphology, cyrstallization, and magnetic characteristics of a certain sample.

I hope I was able to help you with your question. Have a good day.
4 0
3 years ago
Which action is a way to carry out smart growth? A. Keep neighborhoods walkable. B. Put open space between neighborhoods. C. Put
Lina20 [59]

Answer:

Option A.

The best way to carry out smart growth is by keeping neighborhoods walkable.

Explanation:

  • Smart growth is an unique concept that avoids sprawl by urban framing plan and transportation theory.
  • For the smart growth of the community there must be compulsorily availability of walkable spaces in a compact urban centers.
  • This tool of smart growth helps in developing the cities by preserving the available spaces for tomorrow, this process is also known as the sustainable development.
7 0
3 years ago
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Damage to a brain area called the _____ would MOST likely interfere with learning a conditioned fear response to the sight of a
ELEN [110]

Answer:

The options

A)hippocampus

B)basal ganglia

C)hypothalamus

D)cerebellum

The CORRECT ANSWER IS D)

D)cerebellum

Explanation:

Apart from the coordinating process, the cerebellum is involved in motor learning, emotional behavior, and fear memory.

Fear learning is widely shown in the variation of autonomic and somatic responses, as in heart rate and freezing, promoted by a neutral stimulus which could have been formally grouped with a painful one.

Variation or changes of the vermis influences these responses, and its reversible inactivation in the period of consolidation which is seen to impair fear memory.

The neural correlate of cerebellar activities in fear consolidation is shown by a behaviorally promoted long-term rise of synaptic effectiveness and efficiencies among parallel fibers and a Purkinje cell.

Likely synaptic variations after fear conditioning are well fully observed in the amygdala and hippocampus, suggesting an interplay among emotional circumstances of scenario and the different variations in neural process.

Furthermore, in hotfoot mice, that shows a basic lack of parallel fiber to Purkinje cell synapse, short- and long-term fear memories are influenced.

All these data gives a foundational background on the concept that the cerebellum is majorly involved in fear learning.

The functional interplay of the vermis with hypothalamus, amygdala, and hippocampus do infer to a more complex activities of the cerebellum as a form of an united network that basically influences emotional behavior.

8 0
3 years ago
Read 2 more answers
Does arborist care for forests?
IgorC [24]

An arborist is a specialist in the care of individual trees. Arborists are knowledgeable about the needs of trees and are trained and equipped to provide proper care. does that help?

4 0
3 years ago
Read 2 more answers
How much energy is at the producer level?
Tems11 [23]

Explanation:

In a food chain, only 10% of energy is transferred from one trophic level to another trophic level. If the energy produced at the producer level is 1000 J, then the energy available at the primary consumer level will be 100 J and energy available at the secondary consumer level will be 10 J.

5 0
3 years ago
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