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Ulleksa [173]
3 years ago
7

Which statement best describes beaches?

Biology
2 answers:
anastassius [24]3 years ago
5 0

Answer:Beaches are always changing due to factors such as waves adding and eroding sand.

12345 [234]3 years ago
5 0

Answer:Beaches are always changing due to factors such as waves adding and eroding sand.

Explanation:

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Which plant nutrient deficient cause stomata closing ?​
Paladinen [302]

Answer:

K deficiency cause stomata closing

5 0
3 years ago
How long does it take harry to go 0.7 miles if he can run 1.2 miles in 6 minutes
IgorLugansk [536]

Answer:

Harry will take 21 seconds

Explanation:

Speed = distance covered / time taken

Harry covers 12 miles in 6 minutes so,

the speed of Harry will be 12/6 = 2 miles per minute.

Therefore, if he covers 0.7 miles then time taken by him will be,

Time taken = distance covered / speed

                   = 0.7 / 2

                   = 0.35 minutes

                   = 0.35 x 60 seconds

                   = 21 seconds

I hope this helps :)

7 0
3 years ago
A genetics question: Tay-Sachs disease is a rare human disease in which toxic substances accumulate in nerve cells. The recessiv
nydimaria [60]

That was the picture, here is the math. Rather than computing all the individual probabilities then multiplying them out, I prefer to compute the probability distribution of each generation and pass it along that way. 


The grandfather's probability of being Tt is 2/3. *If he is Tt* each of his offspring (2a and 2b) has a 1/2 probability of being Tt as well. So overall, the probability for each of his offspring being Tt is 2/3 * 1/2 = 1/3. 


The offspring are independent events (one would hope) so the probability of both his offspring 2a and 2b being Tt is 1/3 * 1/3 = 1/9.


If 2a is Tt, 2a and TT spouse have a 1/2 probability of producing a Tt offspring. The same argument applies to 2b. The probability that 2a and 2b produce Tt offspring is 1/2 * 1/2 = 1/4. But the probability that 2a and 2b were Tt is 1/9 as calculated above. So the probability that 3a and 3b are both Tt is 1/4 * 1/9 = 1/36. So there is a 1/36 chance that 3a and 3b both are carriers. 


If 3a and 3b have a child and if they are both Tt carriers, the probability that they will have a tt child is 1/4. The probability that 3a and 3b are both carriers is 1/36. So to obtain the probability of a tt child is 1/4 * 1/36 = 1/144.


I hope that this is the answer that you were looking for and it has helped you.

4 0
3 years ago
What do you think the up and down arrows you carved into the spinal cord are meant to represent?
andreev551 [17]
The up and down arrows you carved into the spinal cord are meant to represent the movement of different nerve signals. These signals, which are slso called action potential, are coordinated movements of sodium and potassium ions that are psocessed across the nerve cell membranes
5 0
4 years ago
How would you make an extract of a food to test for reducing sugar​
alexdok [17]
To test for the presence of reducing sugars, a food sample is dissolved in boiling water. Next, a small amount of Benedict's reagent is added and the solution begins to cool. During the next four to 10 minutes, the solution should begin to change colors. If the color changes to blue, then no glucose is present. If a high amount of glucose is present, then the color change will progress to green, yellow, orange, red and then a dark red or brown.
6 0
3 years ago
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