Answer:
C. Darwin realized this also applied to plant and animal populations, and this struggle for existence resulted in an opportunity for natural selection to act on differences within populations.
Step-by-step explanation:
Thomas Malthus in his Malthusian theory of population concluded that since population increases geometrically and resources only increase arithmetically, there will reach a point in time when the resources will be not be able to sufficiently cater for the population.
The Charles Darwin theory of Evolution is based on five key observations and conclusions drawn from them. These observations and inferences are summarized as:
- Species are more fertile. They birth more offspring than can grow to adulthood.
- Populations remain fairly stable with miniscule fluctuations.
- Food resources are limited, but are relatively constant most of the time.
<em>Based off these observations, it is seen that there will be a </em><u><em>struggle</em></u><em> amongst the members of the specie for the </em><u><em>limited resources.</em></u>
- In sexually reproducing species, generally no two individuals are identical. Variation is rampant.
- Much of this variation is heritable.
<em>From the last two observations, the species that survive then pass on their traits to their offspring and the cycle repeats itself with each subsequent generation being </em><u><em>better evolved</em></u><em> than the previous ones.</em>
Thus, Darwin discovered that the Malthusian theory of population also applies to plant and animal populations where <u>scarcity of resources</u> gives room for <u>natural selection</u> to take place due to the variation within populations.
The answer is 11.265408 km.
To calculate the number of kilometers, we will use several conversions:
A) 1 mi = 63,360 in
B) 1 in = 2.54 cm
C) 1 cm = 0.00001 km
A) 1 mi = 63,360 in
7 mi = 63,360 in · 7 = 443,520 in
B) 1 in = 2.54 cm
443,520 in = 2.54 cm · 443,520 = 1,126,540.80 cm
C) 1 cm = 0.001 km
1,126,540.80 cm = 0.00001 km · 1,126,540.80 = 11.265408 km
Answer:
first second sum
5 2 7
7 -3 4
-10 6 -4
second picture
D, C, B, A
Step-by-step explanation:
Two angle that form a linear pair are supplementary meaning they add to equal 180° (straight line).
make the bigger angle = x
then smaller angle = x - 30°
x + x - 30 = 180
2x - 30 = 180
2x = 180 + 30
2x = 210
x = 210/2
x = 105
The question is to find the smaller angle which was: x - 30
105 - 30 = 75°
Answer:
The value of x = 3.
Length = 4 feet and Width = 5 feet
Step-by-step explanation:
Height of the box = 2 ft
Length of the box = (3x-5) ft
Width of the box = (2x-1) ft
Volume of the box = 40 cubic feet
Now, VOLUME OF CUBE = LENGTH x WIDTH x HEIGHT
Now, solving for the value of x, we get:
⇒ Either x-3 = 0, or ( 6x+5) = 0
⇒ Either x = 3, or x = -5/6
As x = SIDE OF A CUBE ,so it CANNOT be negative.
⇒x = 3
So, length = (3x-5) = 3(3) -5 = 9-5 = 4 units
Width = (2x-1) = 2(3) -1 = 5 units