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melomori [17]
3 years ago
15

How are Skylab and Salyut similar?

Biology
1 answer:
umka2103 [35]3 years ago
7 0

Answer:

they are both space stations

Explanation:

trust me it's correct (: !

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The two primary muscles used for breathing are the diaphragm and​ the:
denis23 [38]
Intercostal Muscles

The muscles of respiration are muscles that contribute to exhalation and inhalation by causing the contraction and expansion of the thoracic cavity. However, diaphragm is the main muscle of breathing while intercostal muscles is one of the most important muscles for respiration. Intercostal muscles function by manipulating the width of the rib cage and they are attached between the ribs.


6 0
3 years ago
The expression of a trait is directly dependent on the
Lemur [1.5K]

Answer: B

Explanation:

The question wants to know what the expression is directly dependent on.

The sequence of genetic expression goes like this:

  DNA -> RNA -> protein

If we want to know the root cause of expression, we must look at the DNA, not the RNA or protein, because DNA determines the RNA and protein expression.

 

The  Shape of subunits in DNA -> Sequence of bases coded for by the ribosome with RNA -> Arrangement of amino acids in the protein synthesized.

Why not C: Number of chromosomes present isn't a factor, because most humans, barring those with a genetic disorder, have 23.

5 0
2 years ago
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In cells where telomerase is normally inactive, it can become active by accident and often, cancer will develop as a result. Can
vesna_86 [32]

Answer:

Cancer cells achieve proliferative immortality by activating or upregulating the normally silent human TERT gene (hTERT) that encodes telomerase, a protein with reverse transcriptase activity that complexes with other proteins and a functional RNA (encoded by hTR, also called hTERC) to make a ribonucleoprotein enzyme.

Explanation:

A rare cell that escapes crisis almost universally does so by reactivating telomerase and this cell can now become a cancer cell with limitless potential to divide. Almost all cancer cells have short telomeres and thus inhibitors of telomerase should drive such cancer cells into apoptotic cell death. Yet, each time a cell divides, the telomeres get shorter. When they get too short, the cell no longer can divide and becomes inactive or "senescent" or dies. This process is associated with aging, cancer, and a higher risk of death.

∠(-ω-)√

4 0
3 years ago
How do the finches of the Galapagos Islands demonstrate evolution?
bixtya [17]

The finches adapted over time to better suit their environment that they were in -- the size and shape of their beaks changed as a result of natural selection.

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3 years ago
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balandron [24]

The endocrine system help control the body through chemicals

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