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dalvyx [7]
3 years ago
15

U-Science-Gr8-Unit2-PBT-CBT (2020-21)

Biology
1 answer:
damaskus [11]3 years ago
3 0

Answer:

Figure 3

Explanation:

A mixture is a substance made up of two or more different kind of atoms arranged in such a way that they are not chemically linked or joined. This accounts for the reason a mixture can be separated easily. In the figures attached as an image in this question:

- Figure 1 represents an element because it is made up of only hydrogen atoms chemically bonded together to form a molecule.

- Figure 2 represents a compound because it contains hydrogen and carbon atoms chemically joined together.

- Figure 3 represents a MIXTURE because it contains the oxygen and carbon atoms, which are not chemically joined to one another. As seen in the image, the oxygen atoms are not joined to the carbon atoms.

- Figure 4 represents a compound because it contains oxygen and hydrogen atoms chemically bonded together.

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Answer:

''Stem cells makes copies of itself whereas differentiated cells can't.''

Explanation:

stem cells function differently from differentiated cells because the stem cells divide and make copies of itself. It has the potential either to remain a stem cell or become another type of cell such as a muscle cell, a red blood cell, or a brain cell if the body needed while on the other hand, differentiated cells are specialized cells which performs specific functions and unable to divide.

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3 years ago
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When an athlete is nearing the end of a race ad her cells are low on oxygen?
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1: Which statement describes why eye color is an inherited trait? It depends on the color of light entering the eye.
inn [45]

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2. Genes that determine each trait are located in chromosomes and are passed from parents to their offspring during reproduction.

3. genes

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15. 19 chromosomes

6 0
2 years ago
Jill is heterozygous for gene A and is going to have a child with Jack, who is homozygous recessive for gene A. Which of the fol
Igoryamba

Answer:

D. Aa

Explanation:

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Jill (mother) is heterozygous for gene A --------- i.e Jill = Aa

Jack (father) who is homozygous recessive for gene A-------- i.e Jack = aa

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         A          a

a        Aa        aa

a        Aa        aa

The offsprings are (Aa, Aa, aa, aa)

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Therefore the result of these fertilization of a normal haploid sperm with an egg that had undergone nondisjunction in meiosis yields offspring with genotype Aa of their Mother (Jill).

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3 years ago
Which describes a relationship when calculating the energy of a photon?
shepuryov [24]
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'cause when frequency increases, it's energy also increases

So, option A is your final answer!

Hope this helps!</span>
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