Answer: Chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears. ... At the start of prophase I, the chromosomes have already duplicated. During prophase I, they coil and become shorter and thicker and visible under the light microscope.
Red blood cells are able to maintain homeostasis because they are bathed in blood, which is isotonic <span>to the fluid in the cells themselves.
</span>A solution is said to be isotonic when its effective osmole<span> concentration is the same as that of another solution.</span>
Answer:
Explanation:
I think it’s D humans have added carbon dioxide to the atmosphere by burning fossil fuels
Answer:
The quality of discipline and emotional ties with parents.
Explanation:
Their findings further suggested that adolescent raised in a large, single parent family of limited economics means and educational achievement were vulnerable to delinquency. The Gluecks' research integrated biological, social and psychological elements; and suggested that the initiation and continuity of a criminal career was due to developmental process influenced by both internal and external situations, conditions and circumstances.
