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3 years ago

How would you show that yeast was responsible for making the dough rise?

Biology

1 answer:

Serhud [2]3 years ago

3 0

The answer is litter carbon dioxide bubbles

I hope that helped

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What adverse response is known to occur in people who drink copious amounts of water while participating in intense physical act

MArishka [77]

The correct answer is hyponatremia. This is also called water intoxication in athletes. Water is a substance that is devoid of any solutes and electrolytes. The major extracellular electrolyte sodium is present in the extracellular fluid and the plasma. In the event of increased water intake, the sodium in the plasma will be diluted hence will cause hyponatremia.

3 0

2 years ago

A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w

sergejj [24]

To calculate this we will use the light equation:
$c=$ λ $*f$

We have Frequency $f=9.4* 10^{9}Hz$ .
We know that speed of light in vacuum is $c =3.8* 10^{8} m/s$ .
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
$f=9.4* 10^{9}1/s$
 $c =3.8* 10^{8} m/s$

 $c=$ λ $*f$
⇒ λ $= \frac{c}{f}$
⇒ λ $= \frac{3.8* 10^{8}}{9.4* 10^{9}}$
⇒ λ $=0.04 m$

5 0

3 years ago

NEED HELP ASAP PLEASE !!!!! Pea Plants are heterozygous for both seed shape and seed color. S is the allele for the dominant, sp

nika2105 [10]

Possible gamete's genotypes in both parents are: SY, sY, Sy, sy
Genotypic ratio: SSYY 1 : SSYy 2 : SsYY 2 : SsYy 4 : SSyy 1: Ssyy 2: ssYY 1: ssYy 2: ssyy 1
Phenotypic ratio: yellow, spherical 9 : yellow, dented 3: green, spherical 3 : green, dented 1
Take a look at the attachment :)

6 0

3 years ago

The Arctic tundra has wetlands caused by _____.

Ad libitum [116K]

Answer:

B.soil that is frozen solid all year

C.summer thaws combined with frozen permafrost

D.the overflow of a large lake each summer

6 0

2 years ago

A new mutation arises in one person on the island of Kiribati (human population size 100,000). Assuming this particular mutation

tatuchka [14]

Answer:

0.999999 ≈ 1

Explanation:

In a population ( N ) there is the presence of 2N alleles in the population also chance of fixation can be expressed as ; 1/ 2N

Therefore the probability that the mutation will be lost due to genetic drift

= 2N - 1 / 2N ---- ( 1 )

given that ; N = 100,000

back to equation 1

P ( losing mutation due to genetic drift ) = ((2*100,000) - 1 )) / ( 2* 100,000 )

= ( 200,000 - 1 ) / 200,000

= 0.999999 ≈ 1

5 0

2 years ago