<span>Answer: C. Time of ancient life.

Paleozoic comes from Greek word palaios which means "old" or "ancient", and zoe which means "life".
it could be translated as "</span>Time of ancient life". The range of Paleozoic era is from <span>541 to 251 million years ago that could be divided into 6 smaller periods.</span>

8 0

3 years ago

People with sickle cell anemia have one incorrect amino acid in their beta chain. The first seven amino acids in the beta chain

denis-greek [22]

Answer: Valine

Explanation:

hemoglobin A (normal) is HbA, while hemoglobin S (present in people with sickle cell anemia) is HbS

A sequence of 146 amino acids is present in the Hemoglobin.

The first 6 amino acids in HbA are: valine, histidine, leucine, threonine, proline, and glutamic acid.

The first six amino acids in HbS is:

valine, histidine, leucine, threonine, proline, and VALINE

In Hbs, the 6th amino acid (Glutamic acid) has already been mutated to Valine, a nonpolar, branched amino acid.

5 0

3 years ago

Explain some of the evidence that supports the scientific theory of evolution. Examples can come from fields such as comparative

GrogVix [38]

Answer:

Origin of Species was a book that was published in 1859 by Charles Darwin on human evolution. This theory was based on natural selection.

Explanation:

The evolution theory was first proposed by Darwin in 1856 in his book Origin of Species. In this theory, Darwin explains the changes in species over time result in the changes in the traits and heritable qualities. Evolution occurred by natural selection. In this theory, scientists show two main points that, all species are connected on this earth and the diversity in the population is the result of the modification in traits by time.

For Example, one study on 1900 students on human evolution was published in the journal " Personality and Individual Differences". According to this research, people are hard to find their soul mate because the changes are very rapid in traits.

6 0

3 years ago

Which would most likely decrease genetic variation in the human population apex

Scorpion4ik [409]

Small populations

In small population sizes, inbreeding, or mating between individuals with similar genetic makeup, is more likely to occur, thus perpetuating more common alleles to the point of fixation, thus decreasing genetic diversity.

8 0

3 years ago