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kvasek [131]
3 years ago
7

Evolution of new traits is possible because of

Biology
1 answer:
Ivan3 years ago
8 0

Answer:

transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.

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An ideal gas is held in a container of volume V at pressure p. The rms speed of a gas molecule under these conditions is v. If n
yawa3891 [41]

Answer:

d) 2v

Explanation:

Since, root mean square speed of a molecule,

V_{rms}=\sqrt{\frac{3kT}{m}}

Where,

k = Boltzmann constant,

T = temperature of gas,

m = mass of molecule,

Also, the temperature of a gas,

T=\frac{pV}{nR}

Where,

p = pressure of the gas,

V = volume,

n = number of moles of gas,

R = universal gas constant,

\implies V_{rms}=\sqrt{\frac{3kpV}{mnR}}

If V = 2V and p = 2P

Then,

V_{rms}=\sqrt{\frac{12kpV}{mnR}

=2\sqrt{\frac{3kpV}{mnR}

Hence, if rms speed of a gas molecule under initial conditions is v then rms speed of a molecule will be 2v

i.e. option d is correct.

5 0
3 years ago
The pressure differences that make wind happen are caused
Nady [450]
The sun (solar radiation) because the sun heats the Earth unevenly Earth's surface generates pressure differences. Wind is the result of horizontal differences in air pressure.
6 0
3 years ago
Population A consists of 100 hens that are fully isogenic and that are reared in a uniform environment. The average weight of th
qaws [65]

Answer:

a. the environmental variance (VE) = 3.5 g ²

b. 17.5 g ² for population

c. the heritability of broad sense (H2) = 0.83

Explanation:

a.With the information we have we can infer that environmental factors influence A, which is considered isogenic, thus, the environmental variance (VE) = 3.5 g ²

b.When studying population B, comparing it without environmental changes with respect to population A, we found that its total variance (VT) = 21.0g ²

We generate the following formula with the data obtained previously to find the genetic variation

VT = VE + VG

then VG = VT-VE

replacing data:

VG = 21.0 - 3.5 = 17.5 g ² for population

c. Regarding the heritability of broad sense (H2) in population B, we can reach the result with the data previously obtained like this:

H2 = VG / VT = 17.5 / 21.0 = 0.83

7 0
3 years ago
Which unit of measurement should be used to describe the mass of an apple?
emmasim [6.3K]
The weight of an apple is usually measured in grams. 

Hope this helps :)
6 0
4 years ago
10.0 mL sample of copper has a mass of 89.6 g. What is the density of copper?
kakasveta [241]

Answer:

the density of copper is 8.96 g/cm³

Explanation:

5 0
4 years ago
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