Correct Answer: A. antigens are absent in thier blood cells

Correct Answer: D. leathery cuticle and the feathers

Correct Answer: D. Cambium

Correct Answer: B. vitamin B

Correct Answer: A. Retina

Correct Answer: D. accommodation

Correct Answer: D. Season

Correct Answer: D. adaptation

Correct Answer: D) Human behavior

Explanation

This question is asking which of the listed sources is not an evidence of evolution. The options are: A) fossil records, B) comparative anatomy, C) comparative embryology, D) human behavior (correct answer), and E) none of the above. Fossil records are one of the most important sources of evidence for evolution. They provide a record of the organisms that lived in the past and can show how they have changed over time. Comparative anatomy is another important source of evidence for evolution. This involves comparing the structures of different organisms to see how they are similar or different. The similarities can indicate that the organisms are related and have a common ancestor. Comparative embryology involves studying the development of embryos from different organisms to see how they are similar or different. This can also provide evidence for evolution, as similarities in embryonic development can indicate that the organisms are related. Human behavior, on the other hand, is not an evidence of evolution. While behavior can evolve over time, it is not a physical trait that can be studied in the same way as anatomy or embryology. Therefore, the correct answer is D) human behavior. It is important to note that while human behavior may not be a direct evidence of evolution, it can still be influenced by evolutionary factors such as natural selection. To learn more about this, please read the relevant sections of the recommended textbooks.

Correct Answer: A) Gene mutations

Explanation

This Biology question is asking about mutations that involve alterations in genes. Mutations are changes that occur in the DNA sequence, and they can happen in different parts of the DNA, including genes and chromosomes. In this case, the question is specifically asking about mutations in genes. The answer to this question is option A, which is Gene mutations. This means that mutations that occur in genes are called gene mutations. Gene mutations can happen in different ways, such as substitutions, insertions, and deletions, and they can have different effects on the gene and the protein that it codes for. It's important to understand that mutations can also occur in other parts of the DNA, such as the non-coding regions or the chromosomes themselves. Mutations that occur in the chromosomes are called chromosomal mutations, while mutations that occur in the non-coding regions are called regulatory mutations. Overall, it's important to understand the different types of mutations and their effects on the DNA, genes, and proteins. This knowledge is important in fields such as genetics, biotechnology, and medicine.