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Andre45 [30]
2 years ago
5

4. Scientists have most accurately determined the absolute ages of rock layers by

Biology
1 answer:
Vladimir [108]2 years ago
7 0

Answer:

B

Explanation:

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Which of the following conditions is most likely to result in changes in allele frequencies in a population. A. random mating. B
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The answer to this is B
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Han takes a shower in his family’s new apartment. He gets the water perfect—not too hot, because that hurts! Then Han hears his
tester [92]

Answer:

  1. Unconditioned stimuli, US: getting hurt by hot water.
  2. Conditioned stimulus, CS: hearing a toilet flush.
  3. Unconditioned response, UR: feeling pain after hurting.
  4. Conditioned response, CR: being afraid when hearing a toilet flush.

Explanation:

  • Unconditioned stimuli: Biologically significant stimuli that provoke an unlearned or reflex reaction. For example, getting hurt by hot water.
  • Conditioned stimuli: neutral, innocuous or biologically not significant stimuli. For example, hearing a toilet flush.
  • Unconditioned Responses: Unlearned response that is triggered by reflex because of an unconditioned stimulus. For example, feeling a lot of pain after hurting by hot water.
  • Conditioned Responses: These are provoked by conditioned stimuli. This refers to a learned response that reflects the association between conditioned and unconditioned stimuli. For example, being afraid when hearing a toilet flush.

Initially, an unconditioned stimulus does not provoke any response, but after enough exposition to conditioned and unconditioned stimuli together, the simple presence of unconditioned stimuli induces conditioned responses. In this aspect, the subject has learned to predict or to anticipate the unconditioned stimulus.

5 0
3 years ago
The light-dependent reactions include an electron transport chain system that works in a very
mamaluj [8]

Explanation:

When the high energy electrons move from the reactive center, they are conveyed from one chain protein to another as the energy in the electrons is harnessed to pump H+ ions from the stroma into the lamellae. The electron will ultimately reduce NADP+ to NADPH and the electrons in the reactive center will be replaced by high energy electrons from the splitting of a water molecule in photolysis. The energy of the sun is used to split the water molecule. The high energy electrons then undergo the same cycle as the previous electrons and the cycle continues.

Eventually a proton-motive force is created across the lamellae membrane. This potential energy of the high H+ ion gradient is used by ATP synthase enzyme to phosphorylate ADPs to ATPs.  

Learn More:

For more on photosynthesis check out;

brainly.com/question/12131960

#LearnWithBrainly

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2 years ago
HELP PLEASE ANSWER ANY OF THEM:
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The start Codon is the first mRNA
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Sweat is the result of which life function?
telo118 [61]
<span>Human sweat is a result of our body getting over heated. We sweat through our pores so our temperatures don't go up and as a result we stay at a normal temperature. We may feel hot but that's because we are hot from the heat of something. If we didn't sweat then our temperature would become very high and we would die.</span>
6 0
3 years ago
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