Answer: Haploid number
In normal humans, sex cells contain the diploid number of chromosomes
Explanation;
Human somatic cells or body cells are diploid such that they contain two sets of 23 chromosomes which gives a total of 23 chromosomes. Examples of somatic cells in the body that are diploid include, epithelial cells, somatic cells, liver cells, blood cells, nerve cells, etc.
However, mature sex cells are haploid, which means they have one set of 23 chromosomes which means they have 23 chromosomes. Sex cells are the results of meiosis type of cell division in which a diploid cell divides to form four daughter cells that are haploid.
Answer:
Animals need resources to survive.
Explanation:
With a lack of enough resources for various animals, it generates competition for resources and eventually animals will start to starve and die off.
A Nonsense mutation. It changes a codon coding for an amino acid to a codon coding for the signal to stop or terminate translation
It is important for scientists to use scientific names and not common names because common names can be easily misunderstood as something else. For example, a scientist during an expeirement will use scientific names because if they used a common name of a certain thing and it be mistaken for something that it wasn't the entire expeirement would be ruined or someone could get hurt.
Because good researchers rely on first hand account or better said primary evidence. The reason why they rely on primary evidence is because it is usually the most reliable. Much more so than secondary or even tertiary evidence. This enables them to understand the history of a certain topic better.