This was formerly used as a refrigerant and as a propellant in aerosol cans. these chemicals damage the ozone layer of the earth

What process allows for the development of haploid sex cells? mitosis meiosis fertilization pollination

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d