Answer:
chromosome number is the precise number of chromosomes for a certain species.
Explanation:
in humans there are 46 pairs of chromosomes .
23 from father and 23 from mother.
<span>Several factors contribute to positive population growth as outlined below. All of these also revolve around improvement of child mortality rate in comparison to previous years.
1. Improvement of health and treatment standards - healthcare
2. Improved food production in terms of quantity and quality.
3. Technological advancement in healing and treatment of preexisting diseases and health conditions</span>
DNA supports evolution because all life on Earth carries DNA, and evolution happens only after DNA changes. These changes are called mutations and happen spontanoulsy from flawed DNA copying or from mutagens, such as X-rays or chemicals.
In photosynthesis, carbohydrates are broken down into CO2 and water when they combine with atmospheric oxygen.
