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Anton [14]
3 years ago
13

Which of the following conclusions can be made based on the observed fact that stem cells can differentiate into any kind of cel

l in the human body
A. all cells can mutate into different forms when exposed to external conditions
B. Dna contains all the instructions necessary to build every kind of cell
C. Stem cells can only differentiate into specialized cells when exposed to internal conditions.
D. none of these
Biology
1 answer:
Hatshy [7]3 years ago
7 0

Answer:

a

Explanation:

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Answer:

Gravitational redshift

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Gravitational redshift, changes in a planet's orbital path, gravitational lensing provides concrete evidence for the general theory of relativity. Hope this is helpful and the answer you were looking for!

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The process of cellular respiration allows plants to break down glucose into ATP.

Explanation:

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1.Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. The chemical equation is C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water).

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5.The end product of anaerobic respiration is lactic acid instead of carbon dioxide and water. ... Hence, the amount of oxygen required to oxidize lactic acid to carbon dioxide and water is not present. Aerobic respiration produces 38 ATP whereas anaerobic respiration produces only 2 ATP molecules.

6.Anaerobic respiration occurs when the amount of oxygen available is too low to support the process of aerobic respiration. There are two main types of anaerobic respiration, alcoholic fermentation and lactic acid fermentation.

7.The end products of anaerobic respiration are Lactic acid or ethanol and ATP molecules. Anaerobic respiration takes place in the absence of oxygen and is seen in lower animals. During the process of Anaerobic Respiration in prokaryotes, there is a breakdown of glucose to produce energy for cellular activities.

8.Complete double ciruculatory systems allow for higher metabolic rates to be maintained as there is no mixing of oxygenated and deoxygenated blood. This means that blood leaving the heart to travel to the body is rich in oxygen.

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10.Muscles cells contain more mitochondria because they have to release large amount of energy quickly for movement.

11.Carbohydrate loading is a type of diet where foods high in carbohydrates are eaten a few days prior to or right before an event; this is believed to help aid and provide energy during long- term endurance events. ... Carbohydrates are broken down by the body and turned into glycogen; which is stored in muscles.

12.Aerobic respiration takes place in presence of oxygen; whereas anaerobic respiration takes place in absence of oxygen. Carbon dioxide and water are the end products of aerobic respiration, while alcohol is the end product of anaerobic respiration. Aerobic respiration releases more energy than anaerobic respiration.

13.More blood is pumped to the exercising muscles to deliver that additional O. Without enough oxygen, lactic acid will form instead. Lactic acid is typically flushed from the body within 30 to 60 minutes after finishing up a workout. Tiny tears form in the muscles that help them grow bigger and stronger as they heal

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Why doesn't mom have to worry when her 4-year-old threatens to hold his breath till he dies?
ehidna [41]

Answer:

Because if the 4-year-old child passes out from holding his breath, he will immediately begin breathing again, keeping him alive.

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Which is colder the east or west coast of southern Africa.why<br><br>​
Aneli [31]

West Coast water temperatures are much lower than those along the East Coast. ... This means Atlantic waters travel to the U.S. East Coast from the south and are relatively warm compared with West Coast Pacific waters that arrive from the north out of the chilly Gulf of Alaska.

The air above the cold Benguela current and upwelling region along the west coast is relatively dry and cold, contributing to the dry climate of the west coast. Moist air from the warm Indian Ocean and Agulhas Current is frequently transported into eastern South Africa by easterly winds.

Explanation:

hope this helps

pls put brainliest

3 0
3 years ago
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