BIOLOGY HIGH SCHOOL

Chronic fatigue syndrome results from repeated motions performed in the course of normal work and daily activities. a. True b. False

Answers

Answer 1
Answer:

Answer:

False

Explanation:

Chronic fatigue syndrome refers to the condition of continuous or long term tiredness which is not corrected with the sleep.  

There are many causes of such type of tiredness but the exact cause of the fatigue is not known as this symptom is common to many disorders. The main causes of chronic fatigue are the weak immune system, pathogens and the stress which is increasing with modernisation.

Since there are many causes of the fatigue syndrome therefore only repeated daily activities is not the only option and thus is false.

Thus, false is correct.

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In the human body, when the blood sugar level rises, a hormone known as insulin is released by the pancreas. This hormone speeds up the movement of sugar out of the blood, so the blood sugar level decreases and returns to equilibrium.This is an example of
gene expression.
a feedback mechanism.
natural selection.
a learned behavior

Answers

The scenario described is an example of a feedback mechanism, which is the second option, as a feedback mechanism is a process in which the output or result of a system or process feeds back into the system and influences the input or process.

What is a feedback mechanism?

A feedback mechanism is a process in which the output or result of a system or process feeds back into the system and influences the input or process. In this case, the rise in blood sugar levels triggers the release of the hormone insulin from the pancreas, which then acts to lower blood sugar levels by increasing the movement of sugar out of the blood. This feedback mechanism is essential for maintaining the body's blood sugar levels within a healthy range. When blood sugar levels rise too high or fall too low, the feedback mechanism is triggered to bring the levels back to equilibrium.

Hence, The scenario described is an example of a feedback mechanism, which is the second option

Learn more about the feedback mechanism here.

brainly.com/question/15574460

#SPJ3

Answer:

a feedback mechanism.

Explanation:

I answered it in study island and it was correct

Loss of habitat has decreased the population and number of alleles of Canadian lynx. A few survivors migrated to other forests and multiplied, but there is less genetic variation in the offspring. Which statement is true about this event?

Answers

Reproductive isolation prevents variations from spreading throughout the entire population. Since genetic variations basically occur randomly, the chances that the same variations will occur in both reproductively separated subpopulations are vanishingly slim. Thus, genetic divergence between both subpopulations will occur, and this may eventually lead to speciation. Isolation stops populations of the same species from interbreeding. This results in separate breeding among populations and genetic differences become more pronounced with each generation.

What are 3 examples of autotrophs

Answers

ANSWER:

Plants on land or algae in the water and even some bacteria.

EXPLANATION:

An autotroph or producer is a life form that produces complex natural mixes from basic substances present in its environment, for the most part utilizing vitality from light or inorganic compound responses. They are the makers in a natural way of life, for example, Plants on land or algae in the water and even some bacteria.
Plants, algae, and fungi. I'm not sure about the fungi part

Which of the following describes only RNA?

Answers

Answer:

I'm not sure what the options are but rna or ribonucleic acid is made up of a nucleobase called uracil instead of thymine (which is what dna has). It kinda looks like half of dna.  

Brad and Matt are working in the lab. They noticed that when they mixed two dilute solutions together, the reaction between them happened very slowly. The following are Matt's suggestions. Which one would BEST help to increase the rate of this reaction?A) increase the concentration of both solutions
B) decrease the concentration of both solutions
Eliminate
C) increase the concentration of one of the solutions
D) decrease the concentration of one of the solutions

Answers

Answer:

A.) increase the concentration of both solutions

Explanation: this is the correct answer

A pea plant is heterozygous for both seed shape and seed color. S is the allele for the dominant, spherical shape characteristic; s is the allele for the recessive, dented shape characteristic. Y is the allele for the dominant, yellow color characteristic; y is the allele for the recessive, green color characteristic. Think about the gametes this parent plant will produce. List the alleles in each gamete.

Answers

During gametes production, alleles randomly separate producing different combinations in daughter cells. The gametes in this example are YS, Ys, yS, ys.

How are gametes formed?

Gametes are formed during meiosis. Meiosis is a cell division process that produces gametes from germ cells. Through Meiosis, a diploid cell (2n) produces four haploid daughter cells (n).

According to the segregation principle, alleles separate independently during gametes formation.

In anaphase I, homologous chromosomes separate, and each of them migrate to the opposite poles of the cell carrying one of the alleles. This random event leads to different chromosomal combinations in the daughter cells.

Now, let us analyze the problem,

Plant ⇒ heter0zyg0us for both seed shape and seed color ⇒ SsYy

  • S is the dominant allele and codes for spherical shape
  • s is teh recessive allele and codes for dented shape
  • Y is the dominant allele and codes for yellow
  • y is the recessive allele and codes for green

Gametes) YS, Ys, yS, ys.

You can learn more about gamete formation at

brainly.com/question/931785

So, you would make a punnet square. You would put the capital S and lowercase s on the top of it and then the capital Y and lowercase y on the side. Then you should have SY, sY, Sy, and sy as your outcomes.
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