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Dimas [21]
3 years ago
13

Positive feedback differs from negative feedback in that _____.Select one:a. positive feedback systems have only effectors, wher

eas negative feedback systems have only receptorsb. the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of itc. positive feedback loops are more frequently encountered in the control of homeostasisd. positive feedback benefits the organism, whereas negative feedback is detrimentale. the effector's response increases some parameter (such as body temperature), whereas in negative feedback it can only decrease the parameter
Biology
1 answer:
Andrews [41]3 years ago
8 0

Answer:

b. the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of it

Explanation:

Both positive and negative feedback have the same components:

1. Stimuli - external or internal

2. Sensors - detect the stimuli

3. Control center - processes the information (CNS)

4. Effectors - activated by control center

Negative feedback loops act to oppose the stimulus.

Unlike negative feedback loops, positive feedback loops amplify the starting signal.

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Using the chemical equation for cellular respiration, explain how the amounts of oxygen and carbon dioxide inhaled by the lungs
Ivahew [28]

Answer:

In summary, breathing is the process of inhaling and exhaling through our lungs. It brings oxygen into the body and expels unwanted carbon dioxide. ... Our cells perform cellular respiration with oxygen and glucose to make energy and carbon dioxide.

Explanation:

8 0
3 years ago
Ringing in the ears is called:
Elza [17]

Answer:

c. tinnitus

Explanation:

Tinnitus (a hearing impairment) is a form of  hearing of sound when no external sound is present Which is often described as a Ringing,Tinnitus may also sound like a clicking or roaring. i.e usually unclear voices or music are heard. The sound may be soft or loud, low or high pitched, and appear to be coming from one or both ears. Ranging from one person to another, the sound may causes depression or anxiety and can interfere with concentration.

Otitis externa is a condition that causes inflammation , the inflammation also covers  (redness and swelling) of the external ear canal, i.e the tube between the outer ear and eardrum.

Meniere's disease popularly called (MD), is a disorder of the inner ear that is characterized by episodes of feeling like the world is spinning (vertigo), hearing loss, and a fullness in the  ear. The cause of MD involves both genetic and environmental factors. Some of the factors include constrictions in blood vessels, viral infections, and autoimmune reactions.

Otosclerosis is a condition where one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule in the bony labyrinth. This condition affects one of the ossicles (the stapes) resulting in hearing loss, vertigo or a combination of symptoms.

Therefore from the foregoing we can conclude that Tinnitus is the correct anwser.

4 0
3 years ago
Read 2 more answers
Based on the spectrums in the figure, rank the four galaxies in order of the speed with which they are moving away from Earth, f
zvonat [6]

Answer:

jgkjhnvn iiggkkh ujgkijh

omhko

3 0
2 years ago
What is called as photosynthesis
dexar [7]

Explanation:

Any process by which plants and other photoautotrophs convert light energy into chemical energy is photosynthesis.

Hope it will help :)❤

5 0
3 years ago
Read 2 more answers
What differs among DNA structures of different species?
weqwewe [10]

Answer:

D) the arrangement of the nucleotides within genes

Explanation:

De-oxy ribo nucleic acid that is basically a polymer of nucleotides. Nucleotides are composed of three basic units: a de-oxyribose sugar unit, a phosphate group and nitrogenous bases that can be Adenine, Gunanine, Thymine and Cytosine.Adenine always pairs with Thymine and Guanine always pairs with Cytosine.

This is a universal composition of DNA in each and every living organism. The genes are a segment of DNA that contain specific sequence of nucleotides and encode for a specific trait of organism such as height, weight, eye color etc. The sequence of nucleotides expresses the trait in the form of protein product during the process of Translation. The products of translation are amino acids and every amino acids encode for a specific protein  in almost  all living organisms.

So, what differs in the specie is the sequence of nucleotides in genes. Infact this is the nucleotide sequence which brings evolution in organism and organisms evolve to form new specie with the passage of time. One major cause of change in nucleotide sequence is mutations due to which the organisms change with time.

Suppose the sequence of nucleotide of specific gene in organism A is

AAGGGGAAATTT

However in other specie organism B of same specie is:

TAGGGGAAATTT

This means only mutation of one base changed the gene in organism B and also its product called protein.

Hope it help!

8 0
3 years ago
Read 2 more answers
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