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mina [271]
3 years ago
14

The life expectancy in the US increased more than 30% from 1930 to 2015 which factor could have contributed to this increase a b

etter medical facilities and treatments be decreased Farmland C increased food insecurity D refusal of vaccines
Biology
1 answer:
goblinko [34]3 years ago
3 0
A better medical facilities and treatments.
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Why does the body of a multicellular organism grow larger through cell division rather than by simply growing larger cells? give
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1.LARGES CELLS WILL REQUIRE MORE SPACE 
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A cell accumulates several mutations in the genes that regulate its cell cycle. As a result, the cell no longer responds to inte
Oksanka [162]

ANSWER: CANCER DEVELOPMENT

EXPLANATION:

Tumor suppressor genes (TSGs) are genes that regulates the cell cycle of a cell (i.e the cell division and replication). In other words, TSGs encodes protein that act as control or regulator of cell growth.

However, when there is an alteration in the genetic sequence (mutation) of the TSGs, this make the cell not to respond to cues that had been regulating it growth.

Thus, when cell growth is not regulated, it results to runaway or abnormal cell growth (i.e multiple folds cell division and replication), in other word referred to as “cancer”.

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3 years ago
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If a pin is .001 m wide how many red blood cells could you line up across a pin
tresset_1 [31]
According to the question, the width of a pin is 0.001m and the width of a red blood cell is 6-8 μm.
Width of pin in μm = 1000μm.
So approximately 1000/8 red blood cells can fit which is equal to 125 RBCs.

Answer: 125 RBCs
6 0
3 years ago
Why does the sodium potassium pump require ATP?
SpyIntel [72]

Answer:

The sodium–potassium pump is found in many cell (plasma) membranes. Powered by ATP, the pump moves sodium and potassium ions in opposite directions, each against its concentration gradient. In a single cycle of the pump, three sodium ions are extruded from and two potassium ions are imported into the cell.

Explanation:

Hope I helped!

5 0
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When you examine fluid that you have drawn from a blood vessel in someone's arm, you find that it is relatively high in carbon d
ziro4ka [17]

Answer:

The given blank can be filled with a venule.

Explanation:

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The size of a venule ranges from 8 to 100 micrometers in diameter and are produced when capillaries come in close association. A venule refers to a small blood vessel that permits the deoxygenated blood high in carbon dioxide and waste products to return from capillary beds to the bigger blood vessels known as veins.  

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3 years ago
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