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nasty-shy [4]
3 years ago
15

Protozoans are important in the cycle of life because they break down ___________________.

Biology
1 answer:
kolbaska11 [484]3 years ago
5 0
They break down nutrients, making them available for use
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Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consist
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He can use a microscope. 
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witch statement is one of the three parts of a cell theory? A-all cells come from other cells B-cells come from crystals C-cells
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Answer A seems to be the best choice
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classify if the recessive allele for cystic fibrosis is represented as c, classify the following genotypes as homozygous dominan
Verizon [17]
C = dominant
c = recessive (cystic fibrosis)
CC, cc = homozygous (homo = same)
Cc = heterozygous (hetero = different)

Recessive traits are expressed only when two recessive alleles are present

If you get CC, you will not have cystic fibrosis. (<span>c </span>is the cystic fibrosis allele)
This person would be homozygous dominant and would not pass on the disease because they do not have any cystic fibrosis alleles.

If you get<span> Cc</span> you will not have cystic fibrosis b/c the<span> C</span> is dominant and overrides the cystic fibrosis allele c.
This person would be heterozygous and, though they do not have the disease, they would still have a chance of passing on the disease because they carry the cystic fibrosis allele.

If you get cc you will have cystic fibrosis b/c c is the cystic fibrosis allele and it is not being overridden by a dominant allele.
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8 0
3 years ago
When the distance between the balls decreases, the size of the arrows increases. This shows that the gravitational pull
shepuryov [24]

True

Explanation:

The statement that when the distance between the balls decreases, the size of arrow increases because it shows the gravitational pull between the two balls which increases is true.

According to Newton's law of universal gravitation:

 "The gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of their separation".

Mathematically, the law is written as:

                     F = \frac{G m_{1} m_{2} }{r^{2} }

F is the gravitational force

 G is the universal gravitational constant

  m is the mass of the body

  r is the distances between them.

We see that the less the distance between the two bodies the more the gravitational force they have.

learn more:

Gravitational force brainly.com/question/1724648

#learnwithBrainly

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Which circuit carries blood from the right ventricle to the lungs for gas exchange and returns it to the left atrium of the hear
ElenaW [278]

Answer:

Pulmonary circuit

Explanation:

Pulmonary circuit of blood circulation serves to carry the deoxygenated blood from the right ventricle of the heart to the lungs and then returns the oxygenated blood from the lungs to the left atrium of the heart. The pulmonary trunk carries the deoxygenated blood from the right ventricle to the lungs.

The right pulmonary artery and the left pulmonary artery of the pulmonary trunk carry the blood to the right and left lung respectively. After the gaseous exchange, the pulmonary capillaries unite to form venules and finally the pulmonary veins which in turn carry the oxygenated blood to the left atrium.

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