Answer:
Cells divide twice
Explanation:
Meiosis may be defined as the process of cell division in which a single cell divides to give four daughter cells and each daughter cells have half number of chromosomes.
Meiosis is also known as reduction division as the chromosome number reduces upto half in the progeny cells as compared with the parent cell. The cells divide twice in meiosis and give rise to four daughter cells.
Thus, the correct answer is option (4).
The methods they are using now and days is cross fertalization. To make certain types of crops, and better/best celling crops
Answer:
The Motor Vehicle Air Pollution Control Act was proposed by an amendment to the clean air act.
Explanation:
The clean air act was started in 1963 by the government of the U.S in order to contamination of the air.
The Motor Vehicle Air Pollution Control Act was amended in 1965, which gave the government rights to set standards against pollution that arose from certain kinds of vehicles.
Second amendment to this Act gave the federal government to take further actions and stop any vehicle that polluted the air.
