Let\'s try to summarize Darwin\'s observations that drive changes in species over time: From these four observations, which two inferences did Darwin make? Solution Observation Cite and Example 1. Variations in traits exist. We can see variation in different skin colors of humans, Asian ladybird beetles show variation in color and spot patterns, humans has variations in their eye color, and snail will have different colored shell. 2.These variations (traits) are heritable Parents will pass on their characteristics through heritability, like passing sex-linked traits which are located on genes to their offspring. For example, because of the passing of variation to offspring, the variation observed in offspring will make them to look related to close relatives more when compared to other members of population. 3. Species overproduce. Some species will overproduce. thousands of seeds are produced by Dandelion, Fish will lay millions of eggs and puffball fungus will overproduce the offspring 4. There is competition for resources; not all offspring survive. Not all these offspring produced by the above organisms will survive. It might be due to predation, lack of resources, and lack of favorable environment. So only those which can make use of resources and escape from predation will survive. . From these four observations, what two inferences did Darwin make? 1. Darwin was able to make an inference that offspring which has inherited better traits will have better chance to survive and reproduce in the provided environment and only these will have chance to produce more offspring than other individuals, and the offspring from these fit organism will also thrive well. 2. Because of the tough competition, only individual equipped with better skills or ability will have the chance to survive and reproduce, thus over the generation, only favorable traits will be passing onto the future generation leading to their accumulation. Observation Cite and Example 1. Variations in traits exist. We can see variation in different skin colors of humans, Asian ladybird beetles show variation in color and spot patterns, humans has variations in their eye color, and snail will have different colored shell. 2.These variations (traits) are heritable Parents will pass on their characteristics through heritability, like passing sex-linked traits which are located on genes to their offspring. For example, because of the passing of variation to offspring, the variation observed in offspring will make them to look related to close relatives more when compared to other members of population. 3. Species overproduce. Some species will overproduce. thousands of seeds are produced by Dandelion, Fish will lay millions of eggs and puffball fungus will overproduce the offspring 4. There is competition for resources; not all offspring survive. Not all these offspring produced by the above organisms will survive. It might be due to predation, lack of resources, and lack of favorable.

1. Let's try to summarize Darwin's observations that drive changes in species over time: From
these four observations, which two inferences did Darwin make?
Solution
Observation
Cite and Example
1. Variations in traits exist.
We can see variation in different skin colors of humans, Asian ladybird beetles show variation in
color and spot patterns, humans has variations in their eye color, and snail will have different
colored shell.
2.These variations (traits) are heritable
Parents will pass on their characteristics through heritability, like passing sex-linked traits which
are located on genes to their offspring.
For example, because of the passing of variation to offspring, the variation observed in offspring
will make them to look related to close relatives more when compared to other members of
population.
3. Species overproduce.
Some species will overproduce. thousands of seeds are produced by Dandelion, Fish will lay
millions of eggs and puffball fungus will overproduce the offspring
4. There is competition for resources; not all offspring survive.
Not all these offspring produced by the above organisms will survive. It might be due to
predation, lack of resources, and lack of favorable environment. So only those which can make
use of resources and escape from predation will survive.
. From these four observations, what two inferences did Darwin make?
1. Darwin was able to make an inference that offspring which has inherited better traits will have
better chance to survive and reproduce in the provided environment and only these will have
chance to produce more offspring than other individuals, and the offspring from these fit
organism will also thrive well.
2. Because of the tough competition, only individual equipped with better skills or ability will
have the chance to survive and reproduce, thus over the generation, only favorable traits will be
passing onto the future generation leading to their accumulation.
Observation
Cite and Example
1. Variations in traits exist.
We can see variation in different skin colors of humans, Asian ladybird beetles show variation

2. in color and spot patterns, humans has variations in their eye color, and snail will have different
colored shell.
2.These variations (traits) are heritable
Parents will pass on their characteristics through heritability, like passing sex-linked traits which
are located on genes to their offspring.
For example, because of the passing of variation to offspring, the variation observed in offspring
will make them to look related to close relatives more when compared to other members of
population.
3. Species overproduce.
Some species will overproduce. thousands of seeds are produced by Dandelion, Fish will lay
millions of eggs and puffball fungus will overproduce the offspring
4. There is competition for resources; not all offspring survive.
Not all these offspring produced by the above organisms will survive. It might be due to
predation, lack of resources, and lack of favorable environment. So only those which can make
use of resources and escape from predation will survive.