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AlekseyPX
3 years ago
13

Which of the following is an example of a negative feedback altering homeostatic control? A) a person's heart rate drops as she

runs B) a person shivering as temperatures rise on a hot summer day C) the production of oxytocin (a hormone) increases as oxytocin levels rise in the body D) the concentration of salt in urine increases after eating a large bag of salty chips
Biology
1 answer:
galben [10]3 years ago
6 0

Answer:

Option D, the concentration of salt in urine increases after eating a large bag of salty chips

Explanation:

A negative feedback  reduces the activity causing any uncertain output that disturbs the homeostatic control. For example - if temperature of the body rises , signals are send via negative feedback loop to bring it down to normal body temperature.

Like wise when the concentration of salt in urine rises, we feel thirsty. Thus water is taken to cope up with the increased salt content in body after eating chips.

Here,  the activity (i.e eating of salty chips) disturbing homeostatic control is reduced by increasing the salt content in urine that makes the person thirsty.

Hence, option D is correct

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Answer: overrated

Explanation:

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3 years ago
Everyone in Smurfette’s family has light blue skin, which is the dominant trait for body color in her hometown of Smurf Valley.
Dmitry_Shevchenko [17]

Answer:

All their descendants will be heterozygous for the skin color, Bb, expressing blue skin.

Explanation:

<u>Available data</u>:

  • Smurfette has light blue skin
  • Her family is a "true bred" or "purebred" line.
  • She married a boy who has light yellow skin
  • blue skin is the dominant trait expressed by the B allele
  • yellow skin is a recessive trait, expressed by the b allele

Cross: Smurfette  x  Husband

Parentals)            BB     x     bb

Gametes)          B   B       b     b

Phenotypes) blue skin     yellow skin

Punnett square)

                       B        B

             b      Bb      Bb

             b      Bb      Bb

F1) 100% of the progeny will be heterozygous for the skin color, Bb

     100% of the progeny will be blue-skinned.

Note: Although the progeny is blue-skinned, they are not true-bred anymore.

7 0
2 years ago
A plant breeder found a species of flowering plant with very attractive flowers growing wild in a field and she thought it would
MrRissso [65]

Answer:

the best thing for them to do is get all three i suppose considering it is all one plant

Explanation:

4 0
3 years ago
Variables and controls are chosen during which step of scientific inquiry?
m_a_m_a [10]

Answer:

I think Experimentation :)

Explanation:

apologies if its incorrect.

8 0
2 years ago
At 1 p.m. Charlotte was eating lunch. ________, Joseph was just waking up after sleeping in.
pickupchik [31]

Answer: Consequently

Explanation:

The consequently is used to show the result of the activity. It is used as an adverb in a sentence. For example, hard working labors are in great demand, consequently are paid well.

In the given situation, one sentence or action is influencing the other. Charlotte was eating lunch this consequently affected Joseph who was sleeping and he woke up.

5 0
3 years ago
Read 2 more answers
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