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dalvyx [7]
2 years ago
12

All energy ends up as _________________, which is replenished every day by the ______________.

Biology
1 answer:
bogdanovich [222]2 years ago
7 0
All energy ends up as thermal energy, which is replenished every day by the concentrated energy from the sun.
Hope this helps!

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If a boy exhibits a sex-linked trait that is carried on the X chromosome, what must be true?
ad-work [718]

Answer;

C. His mother carried at least one allele for that trait

Explanation;

-Men have a single allele of each gene on the X chromosome, inherited from their mother, and a single allele of each gene on the Y chromosome, from their father.

-A sex-linked trait is a trait that is controlled by a gene or an allele located on the sex chromosome.

-X-linked traits are maternally inherited from carrier mothers or from an affected father. Each son born to a carrier mother has a 50% probability of inheriting the X-chromosome carrying the mutant allele.

5 0
3 years ago
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Explain the relationship between correlation and causation.
ohaa [14]

Answer:

Correlation indicates that the two numbers are related in some way.

Causation requires more proof that there is no lurking variable that creates the relationship.

Explanation:

6 0
1 year ago
Meiosis reduces chromosome number and rearranges genetic information. Explain how the reduction and rearrangement are accomplish
Alisiya [41]

Answer:

Explanation:

Meiosis is a form of cell division that occurs in the sex cells of organisms. It ensures the reduction of a diploid cell to an haploid cell to allow for the formation of a diploid zygote after fertilization (contribution of both parents haploid sex cells to give a diploid zygote). Thus, this process is very essential and important.

The reduction is accomplished by 2 divisions after the duplication of chromosomes

- first division: separation of homologous pairs of chromosomes (this reduces the total in half)

- second division: separation of sister chromatids of a chromosome.

The rearrangement in meiosis occurs by crossing over/genetic recombination.

This is the exchange of genetic material between homologous pairs of chromosome bringing about a rearrangement and genetic variation

An example of a chromosomal abnormality that arises as a result of defects in this process is the Down Syndrome which is caused by a nondisjunction of the chromosomes 21 pair in a sex cell.

This condition produces offsprings that have some characteristic facial features, short stature etc

6 0
3 years ago
In the cells of the human body, oxygen molecules
kherson [118]
<span>The answer is (1) releases energy. In the cells of the human body, oxygen molecules are used directly in a process of cellular respiration during which energy is released. In cellular respiration, glucose and oxygen yield carbon dioxide and water and energy is released in the form of adenosine triphosphate: C₆H₁₂O₆ (glucose) + O₂ (oxygen) → H₂O (water) + CO₂ (carbon dioxide) + ATP (adenosine triphosphate).</span>
7 0
2 years ago
How many neutrons does the element sodium (Na) contain?
sweet-ann [11.9K]

Answer:

a) 12 neutrons

Explanation:

The atomic mass is 22.990, which can be rounded to 23 and is the combination of protons and neutrons. The atomic number is 11 (protons), and 23-11=12, whoch would be the neutron number

Hope this helps :)

8 0
3 years ago
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