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Ivenika [448]
3 years ago
7

Many countries are cutting down forests to make way for agriculture and roads. How might this practice disrupt the carbon cycle?

What reservoirs and processes might be impacted? Why? Answer the question in a 3-5 sentence paragraph.
70 POINTS!
Biology
1 answer:
aev [14]3 years ago
5 0

Answer:

Understanding the carbon cycle and how it behaves requires that we think of it as a complex dynamic system with components of the system interacting with each other in often unpredictable and emergent ways. A change in one part of a complex system can often cause a myriad of changes in other parts of the system. The Amazon forest ecosystem is a good example of a complex ecosystem currently undergoing changes.

Your teacher got this question from a website, serc.carleton.edu

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Sickle-cell trait is apparently an adaptation for the prevention of __________.
ikadub [295]
Sickle cell trait is apparently an adaptation for the prevention of Malaria.  Sickle cell trait is a condition in which the red blood cells are abnormally shaped, if they inherit two faulty copies of the gene for the oxygen-carrying protein hemoglobin. The faulty gene persists because even carrying one copy of it confers some resistance to malaria. As a result, the frequencies of sickle cell carriers are high in malaria endemic areas. 
4 0
3 years ago
Why do the number of organisms in a group change from the first step to the last step of a dichotomous key?.
Anastaziya [24]

Firstly the question is incomplete as an option is not there.

Why do the number of organisms in a group change from the first step to the last step of a dichotomous key?

a. The number of organisms decreases because the number of common characteristics of the organisms in a group increases.

b. The number of organisms increases because the number of common characteristics of the organisms in a group increases.

c. The number of organisms is cut in half because the number of common characteristics of the organisms in a group decreases by half in the last step.

d. The number of organisms stays the same because the number of common characteristics of the organisms in a group decreases by half in the last step.

The correct answer is B. The number of organisms increases because the number of common characteristics of the organisms in a group increases.

The most common key for the identification of organisms is a dichotomous key, the number of organisms in a group change from the first step to the last step of a dichotomous key as the no. of organisms increases and forms several groups of species and genus.

<h3>What is the use of the dichotomous key?</h3>

The use of dichotomous keys are :

  • contrasting characters
  • dividing organisms
  • eliminating .

Hence concluded that the dichotomous key has a number of organisms increases because the number of common characteristics of the organisms in a group increases.

To learn more about dichotomous keys refer to the link :

brainly.com/question/1281957

4 0
2 years ago
Describe how urine is formed and removal
mafiozo [28]
Urine is formed from water,salt,White blood cell & red blood cell.removed through the bladder,that store it in.
5 0
4 years ago
In some breeds of mice, yellow coat color is
Elis [28]

In the exposed lethal genes cause the individual's death during embryionic development before being born. H0m0zyg0us dominant individuals do <u>not get born</u>. Yellow: 2/3. Grey: 1/3. Phenotypic ratio: 2:1

<h3>What is complete dominance?</h3>

When the dominant allele completely masks the expression recessive allele, we talk about complete dominance.

This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait.

The dominant allele is hiding the expression of the recessive allele.

<h3>What are the lethal genes?</h3>

Refer to genes that impede the normal development of the individual.

  • They can cause death during embryo development <u>before the individual gets born, </u>
  • They can cause the individual's death after being born and <u>before reaching </u><u>sèxual maturity</u><u>.  </u>

Let us assume that mice color is coded by a single diallelic gene that expresses complete dominance.

<u>Available data</u>:

  • Yellow color is dominant over grey color.
  • Yellow is coded by the dominant allele Y
  • Grey is coded by the recessive allele y

  • Genotype YY → Yellow and lethal
  • Genotype Yy → Yellow
  • Genotype yy → Grey

The cross would be as follows,

Cross:  Yy   x    Yy

Gametes) Y    y     Y    y

Punnett square)    Y      y

                      Y     YY    Yy

                      y      Yy     yy

F1) Considering ONLY the successfully born individuals

<u></u>

<u>Genotype</u>

2/3 = 50% of the progeny is expected to be heter0zyg0us, Yy.

1/3 = 25% of the progeny is expected to be h0m0zyg0us recessive, yy.

<u></u>

<u>Phenotype </u>

2/3 = 50% of the progeny is expected to be yellow, Yy.

1/3 = 25% of the progeny is expected to be grey, yy.

The phenotypic ratio is 2:1

You will learn more about lethal genes at

brainly.com/question/13654244

brainly.com/question/14932405

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Researchers have found that increasing global temperatures will cause methane (CH4), a greenhouse gas, to be emitted at increasi
Natasha_Volkova [10]
In this item we are given that the methane emission rate will go high due to the foreseen temperature rise cause by global warming. The biogeochemical cycle that will be affected directly through this is the Carbon cycle.  

Methane is a compound comprised of one atom of carbon and four atoms of hydrogen. Carbon cycle involves the process in which the carbon dioxide emitted by the organisms will be absorbed by the producers. The carbon which are to be absorbed by producers should come in the form of carbon dioxide. 
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