Lamarck is best known for his Theory of Inheritance of Acquired Characteristics: If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring. He said that change is made by what the organisms want or need. For example, Lamarck believed that elephants all used to have short trunks. When there was no food or water that they could reach with their short trunks, they stretched their trunks to reach the water and branches, and their offspring inherited long trunks. Lamarck also said that body parts that are not being used, such as the human appendix and little toes are gradually disappearing. Eventually, people will be born without these parts. Lamarck also believed that evolution happens according to a predetermined plan and that the results have already been decided. Lamarcks theory has been disproven and shows that acquired traits are not passed on to offspring.
Answer:
I have found the choices that are written with this question. For ease of understanding and a better way for explaining the answer I have listed them below:
a. difficulty in classifying species
b. difficulty in classifying asexual species
c. difficulty in classifying hybridizing species
<u><em>d. difficulty in classifying fossil species</em></u>
e. difficulty determining when one species changed into another
Explanation:
The evidence already exists that are required to answer these scientific questions. At this point in time scientists can use genetic data to understand the relationship between species. In some instances the data that is acquired is not enough or it is damaged and not well preserved. Here, along with palaeontologist the scientists can use all the evidence they find to better create cladograms and classification charts to date back our common ancestors.
Even with this great scientific tool it is still a challenge to properly identify the speciation to <em>H. sapiens. </em> The continued advancements in science is closing the gap on these set backs and hopefully in time this can be overcome.
In conclusion, the answer here is <em><u>d. </u></em> It is currently a challenge identifying fossil species.
Answer:
A. 0
Explanation:
Both red-green color blindness and and shape of hairline are independently assorting genes.
Red-green color blindness is X-linked recessive while hairline shape is autosomal dominant.
The man who has widow's peak had a father with straight hairline. This means that the man is heterozygous for the trait.
Assuming hairline shape is represented by S. A heterozygous widow's peak man will have a genotype of Ss. A straight hairline woman will have a genotype of ss.
Assuming the allele for colour blindness is c. A normal vision man will have the genotype 
while a color blind woman will have the genotype 
.
x 
<em>The man does not have the color blind allele and a daughter will need two color blind alleles (one from the father and the other from the mother) in order to show the trait.</em>
<em>This means that the probability of the couple producing a color blind daughter is 0. Hence, the chance that any daughter the couple has will be color blind with a straight hairline is also 0.</em>
The correct option is A.
Answer- No
No because your skin color doesn’t only how to do with genes, it also has to do with the genes of grandparents great grandparents etc. in addition to the environment, for example if you live in the tropics, you would have more melanin to help not get burned by the sun because of the adaption of constant sunlight.
Answer:
I would say bias.
Explanation:
bias: prejudice in favour of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
"there was evidence of bias against foreign applicants"
When you are being biased, you are putting your own opinion into what you are doing or you are trying to persuade the person hearing you, reading what you wrote.
Therefore, Evidence without bias increases its reliability.
