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3 years ago

Which animal never drinks water in its entire life?

Biology

2 answers:

allochka39001 [22]3 years ago

8 0

Kangaroo rat seems the right choice here since all other animals need to drink water to stay alive in their habitat.

Andrei [34K]3 years ago

5 0

The answer is D. the kangaroo rat. They obtain enough water from the metabolic oxidation of the seeds they eat to survive and do not need to drink water at all.
Hope this helps! :)

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Today, biologists have the ability to read an organism's genetic message and then ___ it to get desired results.

sergejj [24]

The answer is Rewrite
Hope this helps! :P

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3 years ago

The number of cells in an average-sized adult human is on the order of 10^14 cells. Use this information, and the estimate that

KengaRu [80]

IF:
Number of cells: $C = 10^{14}$
DNA lenght: $D = 2m = 12.42 * 10^{-4} mi$
Distance from Earth to Sun: $ES=93000000 mi = 9.3* 10^{7}mi$

Then:
a) Over how many miles would the total DNA from the average human stretch?
The answer is product of multiplication of the number of cells (C) and the DNA length (D):
Total DNA: $T = C*D$
⇒ $T = 10^{14}*12.42* 10^{-4} mi$
⇒ $T = 12.42* 10^{14-4} mi$
⇒ $T = 12.42* 10^{10} mi$
The total DNA from the average human will stretch $12.42* 10^{10} mi$

b) How many times would the total DNA from the average human stretch from Earth to the Sun and back?
The answer is concluded from the ratio of the total DNA length (T) and the twice (because of stretch to the Sun and back, thus, two directions) of distance from Earth to the Sun (ES) and :
Ratio: $R= \frac{T}{2*ES}$
⇒ $R = \frac{12.42* 10^{10}mi }{2*(9.3* 10^{7}mi)}$
⇒ $R = \frac{12.42* 10^{10}}{18.6*10^{7}}$
⇒ $R = 0.6677* 10^{10-7}$
 ⇒ $R = 0.6677* 10^{3}$
 ⇒ [tex]R = 667.7
Thus, 667,7 times will the total DNA from the average human stretch from Earth to the Sun and back.

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3 years ago

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IgorLugansk [536]

Answer:

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Explanation:

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They surround and engulf foreign objects and organisms- process called phagocytosis

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