The answer is 23 chromosomes.
Answer:
D
Explanation: Rules of Reflection for Concave Mirrors: Any Incident ray traveling parallel to the principal axis on the way to the mirror will pass through the focal point upon Reflection.
Answer B is false. An element is a type of atom and you do not need to combine two atoms to get a specific element. Combining two atoms will leave you with a compound not an element.
B. mitochondria and nucleus
Answer:
Correct option is D. (All of the above)
Explanation:
Consequences of obesity, and overweight increase the risk of lots of health problems such as heart disease, diabetes, high blood pressure, and sometimes death as well.
Overweight occurs when a human body mass index is more than 25. It is caused by the taking more calories than are burned by everyday activities or exercise.