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Mkey [24]
3 years ago
12

Why is down syndrome not curable

Biology
1 answer:
Alexeev081 [22]3 years ago
6 0

Down syndrome is not curable because you can't take away an extra chromosome. It is the result of a genetic anomaly, it is thought to be caused by the age of parents, and history of chromosomal translation. It is completely natural, and random.

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When scientists built up the brains of rats in the study of summer camp rats and cage potato rats?
Hatshy [7]
When people or animals play and interact with information, they get smarter.
8 0
3 years ago
Why are baboons, sparrows, and human beings considered both primary and higher order consumers?
SIZIF [17.4K]
Baboons, sparrows, and human beings are considered both primary and higher order consumers because they all eat plants and meat. 
Primary consumers feed on producers/ plants. Then secondary consumers feed on primary consumers.
 
8 0
3 years ago
Read 2 more answers
Key deer, a subspecies of white-tailed deer, are only found on a few islands in the Florida Keys. They are tiny deer that weigh
Helen [10]

Answer:

<em>The correct option is limited food and water resources favored the survival of smaller deer.</em>

Explanation:

The islands where the Key deer lived had limited food and water resources. As migration was not possible for these species because the white-tailed deer had more adaptations as compared to them, hence they had to somehow survive in these areas with limited food and water resources. Limited food resources were the reason that the Key deer could not grow properly and hence evolved to have very little weight.

6 0
3 years ago
8-2 Telling Them Apart. From the following list of properties, indicate which one(s) can be used to distinguish between each of
Oksanka [162]
<h2>Transportation across the membrane</h2>

Explanation:

(a) Simple diffusion; Faciliated diffusion-Directions in which two transported solutes move

  • In simple diffusion diffusion of non polar compounds across the membrane and along the concentration gradient without the involvement of protein whereas in case of facilitated diffusion membrane transport proteins that facilitate movement pf molecules across the membrane down its concentration gradient
  • Both the diffusions does not require energy

(b) Facilitated diffusion; active transport-Direction the solute moves relative to its concentration gradient

  • In facilitated diffusion membrane transport proteins that facilitate movement of molecules across the membrane down its concentration gradient without the expenditure of energy
  • Active transport drives transportation of solute against the concentration gradient across the membrane

(c) Simple diffusion; Active transport-Directions in which two transported solutes move and Direction the solute moves relative to its concentration gradient

  • In simple diffusion diffusion of non polar compouds across the membrane and along the concentration gradient without the involvement of protein and energy
  • Active transport drives transportation of solute against the concentration gradient across the membrane;secondary active transporters coupled with transportation of two solute molecules

(d) Direct active transport; Indirect active transport-Direction the solute moves relative to its concentration gradient or its electrochemical potential

  • Direct active transport use direct energy such as ATP hydrolysis,oxidation and sunlight energy
  • Indirect active transport use indirect energy such as chemical gradient,electrochemical gradient established by direct active transporters;one solute moves along the concentration gradient while other moves against the concentration gradient

(e) Symport; Antiport-Direction in which two transported solutes move

  • In symport both the solute molecules move in same direction;coupled with primary active transport(direct transport)
  • In antiport both the solutes moves in opposite direction;coupled with secondary active transport(indirect transport)

(f) Uniport; coupled transport-Directions in which two transported solutes move

  • Uniport is the transport of single solute across the membrane
  • Coupled transport is the transport of two solute molecules across the membrane;it may be symport or antiport

(g) P-type ATPase; V-type ATPase-Kinetics of solute transport

  • P-type ATPase always transport cations and undergoes phosphorylation
  • V-type ATPase(here V stands for vacuole) transport protons and no phosphorylation occurs;catalytic activity is not reversible
  • Both are types of primary active transporters
6 0
3 years ago
When a divergent boundary occurs under the ocean it is called
lys-0071 [83]
<span>When a divergent boundary occurs under the ocean it is called oceanic ridge.</span>
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3 years ago
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