Answer:
21
Explanation:
there are supposed to be 2 chromosomes, not 3. This person has down syndrome.
Answer:
The given situation is an example of <u>density dependent factor</u>.
Explanation:
The density dependent factors are the factors that regulate the growth of a population. It is defined as the factors whose effects on the growth or size of a given population vary with the population's density. The various types of density dependent limiting factors are diseases, migration, safe drinking water, food availability, migration etc.
<u>Therefore, the given situation is an example of density dependent factor.</u>
The cell would fall apart it has no walls to hold it together
The answer is that <span>all
veins carry blood back to the heart, except for the pulmonary vein. the
vena cava empty into the right side of the heart, so they technically
bring blood to the
</span>main atrium.