Drugs<span> are chemicals that </span>affect<span> the brain by tapping into its communication system and interfering with the way neurons normally send, receive, and process information. Some </span>drugs<span>, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter. </span>
The sperm (male nucleus) goes through the pollen tube via micropyle to fuse with the female nucleus. can I please get brainliest also I need it to advance
