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Gala2k [10]
4 years ago
8

Explain how sick cell anemia occurs and how amniocentesis is used by pediatricians. PLEASE ANSWER AS SOON AS POSSIBLE!!!

Biology
1 answer:
IrinaVladis [17]4 years ago
4 0
Sickle cell anemia occurs when it is passed down from the parents. It is a look diese. It is caused by when 2 parents inherit 2 abnormal genes. It's when the blood cells change shape. Pediatrics use amniocentesis to see if the baby has missing chromosomes hat cause Down syndrome in early pregnancy
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Which statement regarding the relative ages of rocks and events is
taurus [48]

Answer:

C. Faults are younger than the youngest layer they cut through.

Explanation:    

<em> A. Intrusive rock is older than the surrounding rock layers. </em>WRONG. The intrusive rocks are those that solidify underground and always form after the ones around them. So they are younger than the surrounding rocks.

<em>B. A fold is older than the oldest rock layer it contains. </em>WRONG. First, layers are set, and then, it occurs the folding. The folding is always younger than the involved layers.  

<em>C. Faults are younger than the youngest layer they cut through.</em> RIGHT. A fault is a cut through different layers that occurs when the sedimentary rock breaks transversally. It occurs always after the sedimentary rock is already formed. So the fault is always younger than all the layers it cuts through.

D. Rock layers that have been overturned are oldest from the base to the surface. WRONG. If <u>overturned</u>, according to the superposition low, layers are oldest from the surface to the base. Superposition law states that during the sedimentary rock formation, the oldest layer is always that one at the bottom, while the younger layer is the higher one.

4 0
3 years ago
In eukaryotes , DNA is found in the cytoplasm of the cell
Paladinen [302]
In eukariotes, cells that have a neculeus, the dna is found in the neculeus, not the cytoplasim so that is false... I dunno if that is what u were asking...
5 0
3 years ago
In which of these is osmosis occurring
lakkis [162]

Answer:

1.Plant absorbing water from the soil.

Explanation:

Osmomsis occurs by the movement of a water from a region of higher concentration of water molecules to a region of lower concentration of water molecules, through a semi permeable membrane,

<em><u>OR</u></em>

It occurs as a result of movement of substance molecules from a region of lower concentration to a region of Higher concentration of the substance.

<em><u>Note</u></em><em><u>:</u></em> The higher the concentration of the substance molecules,the lower the concentration of water molecules.

4 0
3 years ago
Which two organ systems work together to inhale oxygen?
stellarik [79]
It is the circulatory system and respiratory system.
8 0
3 years ago
N African savannas elephants are a keystone species. Elephants eat small trees, such as acacia, that grow on the savanna. Even i
S_A_V [24]

Answer:

The Acacia tree's and other small plants the elephants eat would begin to grow in terms of population. Similar to if the elaphants grew in population, the Acacia tree's would decrease in population.

3 0
4 years ago
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