Fossils from Australopithecus provide evidence for evolution:
It was a developing form between apes and humans.
Possessing the duplicated SRGAP2 which raised the length and ability of neurons in the brain, they were the first hominids to carry this certain genes.
The correct answer is: Eubacteria.
The human microbiota is the name for all of the bacteria found within the human body. This aggregates of microorganisms are wide spread in different tissues, such as the skin, mammary glands, seminal fluid, uterus, saliva, oral mucosa, conjunctiva, gastrointestinal tracts.
In a peptide bond formation between two amino acids, a water molecule (A) is liberated. This reaction is called condensation. The water molecule is formed by a single hydroxide ion being removed from one amino acid, and a single hydrogen ion from the second amino acid, which combine to form a water molecule.
Answer:
here.
Explanation:
Due to the prevalence of malaria in Africa, the allele for sickle cell anemia (HbS) provides a selective advantage. That's why it remains in the population.
A normal African person (HbAHbA), with normal haemoglobin, will not die of anemia, but will die of malaria.
An African person with sickle cell anemia (HbSHbS), with abnormal haemoglobin, will die of anemia.
A heterozygous African person (HbAHbS), with half of his red blood cells (RBCs) being normal and the other half being sickle-shaped, will neither die from anemia, nor malaria since the plasmodium will be incapable of completing its life cycle in the abnormal RBCs.
Thus heterozygous African people will grow, reproduce and pass on the HbS allele to the next generations.
Answer:
C. The differences between the observed and expected counts are too large to be attributed to chance.
Explanation:
The p-value of the statistic represents the chance that the observed count is based on luck or chance. When p value too high, the research can't be used since the chance that its not represent real condition are too high. Most researchers use 5% (0.05) as the cutoff of something called statistically significant. In this research, the p-value is 0.04 or 4%, so it is statistically significant.
