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serious [3.7K]
4 years ago
13

Which is an example of an internal stimulus?

Biology
2 answers:
8_murik_8 [283]4 years ago
5 0

Answer:

D. A decrease in oxygen levels in the blood during exercise.

Explanation:

Trus me

Rama09 [41]4 years ago
4 0
D thats the only answer that is internal
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A Venn diagram can be used to compare and contrast nucleic acids. Which characteristic would be correctly found in B?
soldier1979 [14.2K]

Out of the following given choices;

contain ribose

consist of two strands

made of nucleotides

have an R group

The answer is 'made of nucleotides'. This is because out of the choices, DNA and RNA share the similarity of being made of nucleotides. However, while DNA is made of deoxyribose nucleotides, RNA is composed of ribose nucleotides. This difference is that in deoxyribose nucleotide, the 2nd carbon has a hydroxyl group while ribose nucleotide has hydrogen.

6 0
3 years ago
Which is a need?<br> A.shelter <br> B.gum<br> C.chocolate bar <br> D.toys
Degger [83]

Answer:

A-Shelter, the others are for enjoyment while shelter takes care of your physical state

8 0
4 years ago
Marissa suffers from panic disorder, where she experiences unpredictable, unbearable episodes of panic that closely resemble the
Vsevolod [243]

Answer:

A. distress is the correct answer.

Explanation:

Marissa suffers from panic disorder, where she experiences unpredictable, unbearable episodes of panic that closely resemble the symptoms of a heart attack.(This description of her disorder represent distress)

Panic disorder is a stress disorder described by reoccurring sudden panic attacks.

Distress is a situation of severe stress or tension, usually caused by different factors such as failure in the exam, teasing, personal problems, loss of a job, etc.

Distress due to panic or anxiety affects a person's chance of undergoing cardiovascular problems such as stroke, heart attack, and health problems.

Distress changes in the process of blood clots and increases the blood pressure level, weaken the heart muscle that increases the problem of heart attack.

7 0
3 years ago
Please help . - How do scientist explain the incomplete fossil record? A) The fossil record is limited to fossilized animals and
stich3 [128]

Answer:

Option C.

Scientist explain the incomplete fossil record because not all organisms become fossils. Processes like erosion and mountain building can change rock layers, causing fossils to be spread over multiple layers or destroyed.

Explanation:

  • Fossils are the remains of organisms that are found on the rocks after they die.
  • So, no one can be 100% sure about the complete fossil record because of the continuous process like erosion and other natural calamities.
  • The sediment must cover any organism's remains to start the fossilization process to start. Most of the organisms start decomposing  before this process can be executed.
8 0
3 years ago
Structures located at the ends of eukaryotic chromosomes are called ________. telomerases permissive mutations telomeres centrom
4vir4ik [10]

Answer:

telomeres .................

7 0
2 years ago
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